Jump to content

Q11458 (Q11458): Difference between revisions

From National Library of Greece
Created a new Item
 
Changed an Item
 
(14 intermediate revisions by the same user not shown)
Property / instance of
 
Property / instance of: person (C10004) / rank
Normal rank
 
Property / has identifier for person [a/datatype] (RDA:P50094)
urn:nbn:gr:nlg:01-A010885
 
Property / has identifier for person [a/datatype] (RDA:P50094): urn:nbn:gr:nlg:01-A010885 / rank
Normal rank
 
Property / has identifier for person [a/datatype] (RDA:P50094): urn:nbn:gr:nlg:01-A010885 / qualifier
 
Property / has identifier for person [a/datatype] (RDA:P50094)
A25111
 
Property / has identifier for person [a/datatype] (RDA:P50094): A25111 / rank
Normal rank
 
Property / has identifier for person [a/datatype] (RDA:P50094): A25111 / qualifier
 
Property / has related entity of person [a/datatype] (RDA:P50482)
https://isni.org/isni/0000000035961056
 
Property / has related entity of person [a/datatype] (RDA:P50482): https://isni.org/isni/0000000035961056 / rank
Normal rank
 
Property / has related entity of person [a/datatype] (RDA:P50482): https://isni.org/isni/0000000035961056 / qualifier
 
Property / has related entity of person [a/datatype] (RDA:P50482)
http://viaf.org/viaf/46998973
 
Property / has related entity of person [a/datatype] (RDA:P50482): http://viaf.org/viaf/46998973 / rank
Normal rank
 
Property / has related entity of person [a/datatype] (RDA:P50482): http://viaf.org/viaf/46998973 / qualifier
 
Property / has related manifestation of person [a/datatype] (RDA:P50313)
rda
 
Property / has related manifestation of person [a/datatype] (RDA:P50313): rda / rank
Normal rank
 
Property / has related manifestation of person [a/datatype] (RDA:P50313): rda / qualifier
 
Property / has date of birth [a/datatype] (RDA:P50121)
1939-08-24
(August 24th, 1939)
 
Property / has date of birth [a/datatype] (RDA:P50121):
1939-08-24
(August 24th, 1939)
/ rank
Normal rank
 
Property / has date of birth [a/datatype] (RDA:P50121):
1939-08-24
(August 24th, 1939)
/ qualifier
 
Property / has date of death [a/datatype] (RDA:P50120)
2023-03-28
(March 28th, 2023)
 
Property / has date of death [a/datatype] (RDA:P50120):
2023-03-28
(March 28th, 2023)
/ rank
Normal rank
 
Property / has date of death [a/datatype] (RDA:P50120):
2023-03-28
(March 28th, 2023)
/ qualifier
 
Property / has authorized access point for person [a/datatype] (RDA:P50411)
Μπόσκου, Δ. (Δημήτρης), 1939-2023
 
Property / has authorized access point for person [a/datatype] (RDA:P50411): Μπόσκου, Δ. (Δημήτρης), 1939-2023 / rank
Normal rank
 
Property / has authorized access point for person [a/datatype] (RDA:P50411): Μπόσκου, Δ. (Δημήτρης), 1939-2023 / qualifier
 
Property / has surname [a/datatype] (RDA:P50291)
Μπόσκου
 
Property / has surname [a/datatype] (RDA:P50291): Μπόσκου / rank
Normal rank
 
Property / has given name [a/datatype] (RDA:P50292)
Δ.
 
Property / has given name [a/datatype] (RDA:P50292): Δ. / rank
Normal rank
 
Property / has fuller form of name [a/datatype] (RDA:P50115)
(Δημήτρης),
 
Property / has fuller form of name [a/datatype] (RDA:P50115): (Δημήτρης), / rank
Normal rank
 
Property / has country associated with person [a/object] (RDA:P50097)
 
Property / has country associated with person [a/object] (RDA:P50097): RDA Item Placeholder / rank
Normal rank
 
Property / has country associated with person [a/object] (RDA:P50097): RDA Item Placeholder / qualifier
 
Property / has country associated with person [a/object] (RDA:P50097): RDA Item Placeholder / qualifier
 
Property / has country associated with person [a/object] (RDA:P50097): RDA Item Placeholder / qualifier
RDA entity link temporary identifier: urn:nbn:gr:nlg:01-A273372
 
Property / has field of activity of person (P50100)
 
Property / has field of activity of person (P50100): RDA Item Placeholder / rank
Normal rank
 
Property / has field of activity of person (P50100): RDA Item Placeholder / qualifier
 
Property / has field of activity of person (P50100): RDA Item Placeholder / qualifier
 
Property / has field of activity of person (P50100): RDA Item Placeholder / qualifier
RDA entity link temporary identifier: urn:nbn:gr:nlg:01-A208978
 
Property / has field of activity of person (P50100)
 
Property / has field of activity of person (P50100): RDA Item Placeholder / rank
Normal rank
 
Property / has field of activity of person (P50100): RDA Item Placeholder / qualifier
RDA entity link temporary label: Χημεία τροφίμων
 
Property / has field of activity of person (P50100): RDA Item Placeholder / qualifier
 
Property / has field of activity of person (P50100): RDA Item Placeholder / qualifier
RDA entity link temporary identifier: urn:nbn:gr:nlg:01-A217333
 
Property / has field of activity of person (P50100)
 
Property / has field of activity of person (P50100): RDA Item Placeholder / rank
Normal rank
 
Property / has field of activity of person (P50100): RDA Item Placeholder / qualifier
RDA entity link temporary label: Πανεπιστημιακή διδασκαλία
 
Property / has field of activity of person (P50100): RDA Item Placeholder / qualifier
 
Property / has field of activity of person (P50100): RDA Item Placeholder / qualifier
RDA entity link temporary identifier: urn:nbn:gr:nlg:01-A329554
 
Property / has profession or occupation (P50104)
 
Property / has profession or occupation (P50104): RDA Item Placeholder / rank
Normal rank
 
Property / has profession or occupation (P50104): RDA Item Placeholder / qualifier
 
Property / has profession or occupation (P50104): RDA Item Placeholder / qualifier
 
Property / has profession or occupation (P50104): RDA Item Placeholder / qualifier
RDA entity link temporary identifier: urn:nbn:gr:nlg:01-A245851
 
Property / has profession or occupation (P50104)
 
Property / has profession or occupation (P50104): RDA Item Placeholder / rank
Normal rank
 
Property / has profession or occupation (P50104): RDA Item Placeholder / qualifier
RDA entity link temporary label: Πανεπιστημιακοί καθηγητές
 
Property / has profession or occupation (P50104): RDA Item Placeholder / qualifier
 
Property / has profession or occupation (P50104): RDA Item Placeholder / qualifier
RDA entity link temporary identifier: urn:nbn:gr:nlg:01-A215454
 
Property / has language of person (P50102)
 
Property / has language of person (P50102): RDA Item Placeholder / rank
Normal rank
 
Property / has language of person (P50102): RDA Item Placeholder / qualifier
RDA entity link temporary label: Ελληνικά (Νέα ελληνικά)
 
Property / has language of person (P50102): RDA Item Placeholder / qualifier
 
Property / has language of person (P50102): RDA Item Placeholder / qualifier
RDA entity link temporary identifier: http://id.loc.gov/vocabulary/iso639-2/gre
 
Property / has variant access point for person [a/datatype] (RDA:P50412)
Μπόσκου, Δημήτρης, 1939-2023
 
Property / has variant access point for person [a/datatype] (RDA:P50412): Μπόσκου, Δημήτρης, 1939-2023 / rank
Normal rank
 
Property / has variant access point for person [a/datatype] (RDA:P50412): Μπόσκου, Δημήτρης, 1939-2023 / qualifier
 
Property / has variant access point for person [a/datatype] (RDA:P50412): Μπόσκου, Δημήτρης, 1939-2023 / qualifier
 
Property / has variant access point for person [a/datatype] (RDA:P50412)
Boskou, Dimitrios, 1939-2023
 
Property / has variant access point for person [a/datatype] (RDA:P50412): Boskou, Dimitrios, 1939-2023 / rank
Normal rank
 
Property / has variant access point for person [a/datatype] (RDA:P50412): Boskou, Dimitrios, 1939-2023 / qualifier
 
Property / has variant access point for person [a/datatype] (RDA:P50412): Boskou, Dimitrios, 1939-2023 / qualifier
 
Property / has variant access point for person [a/datatype] (RDA:P50412)
Boskou, D. (Dēmētrēs), 1939-2023
 
Property / has variant access point for person [a/datatype] (RDA:P50412): Boskou, D. (Dēmētrēs), 1939-2023 / rank
Normal rank
 
Property / has variant access point for person [a/datatype] (RDA:P50412): Boskou, D. (Dēmētrēs), 1939-2023 / qualifier
 
Property / has variant access point for person [a/datatype] (RDA:P50412): Boskou, D. (Dēmētrēs), 1939-2023 / qualifier
 
Property / has variant access point for person [a/datatype] (RDA:P50412): Boskou, D. (Dēmētrēs), 1939-2023 / qualifier
MARC21 $7 provenance: ALA-LC romanization:Greek:2010
 
Property / has variant access point for person [a/datatype] (RDA:P50412)
Mpóskou, D. (Dīmī́trīs), 1939-2023
 
Property / has variant access point for person [a/datatype] (RDA:P50412): Mpóskou, D. (Dīmī́trīs), 1939-2023 / rank
Normal rank
 
Property / has variant access point for person [a/datatype] (RDA:P50412): Mpóskou, D. (Dīmī́trīs), 1939-2023 / qualifier
 
Property / has variant access point for person [a/datatype] (RDA:P50412): Mpóskou, D. (Dīmī́trīs), 1939-2023 / qualifier
 
Property / has variant access point for person [a/datatype] (RDA:P50412): Mpóskou, D. (Dīmī́trīs), 1939-2023 / qualifier
MARC21 $7 provenance: ISO 843:1997
 
Property / has source consulted (P61101)
Τεκμήριο: Χημεία τροφίμων, 1997:
 
Property / has source consulted (P61101): Τεκμήριο: Χημεία τροφίμων, 1997: / rank
Normal rank
 
Property / has source consulted (P61101): Τεκμήριο: Χημεία τροφίμων, 1997: / qualifier
stated as [wikidata/datatype] (P1932): σελίδα τίτλου (Δ. Μπόσκου· καθηγητού Α.Π.Θ.)
 
Property / has source consulted (P61101)
Τεκμήριο: Χημεία τροφίμων με στοιχεία τεχνολογίας τροφίμων, 1983-:
 
Property / has source consulted (P61101): Τεκμήριο: Χημεία τροφίμων με στοιχεία τεχνολογίας τροφίμων, 1983-: / rank
Normal rank
 
Property / has source consulted (P61101): Τεκμήριο: Χημεία τροφίμων με στοιχεία τεχνολογίας τροφίμων, 1983-: / qualifier
stated as [wikidata/datatype] (P1932): τόμος 1, σελίδα τίτλου (Δ.Γ. Μπόσκου· επίκουρου καθηγητή Α.Π.Θ.), πρόλογος (Δ. Μπόσκου)
 
Property / has source consulted (P61101)
Τεκμήριο: Αιρετικό αλφαβητάριο, 2023:
 
Property / has source consulted (P61101): Τεκμήριο: Αιρετικό αλφαβητάριο, 2023: / rank
Normal rank
 
Property / has source consulted (P61101): Τεκμήριο: Αιρετικό αλφαβητάριο, 2023: / qualifier
stated as [wikidata/datatype] (P1932): σελίδα τίτλου (Δημήτρης Μπόσκου), σελίδα 147 (γεννήθηκε στις 24 Αυγούστου 1939· ομότιμος καθηγητής χημείας του ΑΠΘ· ειδικός στη χημεία τροφίμων· διπλωματούχος του Τμήματος Χημείας του ΑΠΘ· διδάκτωρ και υφηγητής του ΑΠΘ· Philosophy Doctor του Πανεπιστημίου του Λονδίνου), σελίδα 148 (πέθανε στη Θεσσαλονίκη στις 28 Μαρτίου 2023)
 
Property / has source consulted (P61101)
LC/NACO (αρχείο καθιερωμένων επικεφαλίδων), ημερομηνία προσπέλασης 27 Φεβρουαρίου 2024
 
Property / has source consulted (P61101): LC/NACO (αρχείο καθιερωμένων επικεφαλίδων), ημερομηνία προσπέλασης 27 Φεβρουαρίου 2024 / rank
Normal rank
 
Property / has source consulted (P61101): LC/NACO (αρχείο καθιερωμένων επικεφαλίδων), ημερομηνία προσπέλασης 27 Φεβρουαρίου 2024 / qualifier
stated as [wikidata/datatype] (P1932): (επικεφαλίδα: Boskou, Dimitrios)
 
Property / instance of
 
Property / instance of: person (C10004) / rank
 
Normal rank
Property / has identifier for person [a/datatype] (RDA:P50094)
 
urn:nbn:gr:nlg:01-A010885
Property / has identifier for person [a/datatype] (RDA:P50094): urn:nbn:gr:nlg:01-A010885 / rank
 
Normal rank
Property / has identifier for person [a/datatype] (RDA:P50094): urn:nbn:gr:nlg:01-A010885 / qualifier
 
Property / has identifier for person [a/datatype] (RDA:P50094)
 
A25111
Property / has identifier for person [a/datatype] (RDA:P50094): A25111 / rank
 
Normal rank
Property / has identifier for person [a/datatype] (RDA:P50094): A25111 / qualifier
 
Property / has related entity of person [a/datatype] (RDA:P50482)
 
https://isni.org/isni/0000000035961056
Property / has related entity of person [a/datatype] (RDA:P50482): https://isni.org/isni/0000000035961056 / rank
 
Normal rank
Property / has related entity of person [a/datatype] (RDA:P50482): https://isni.org/isni/0000000035961056 / qualifier
 
Property / has related entity of person [a/datatype] (RDA:P50482)
 
http://viaf.org/viaf/46998973
Property / has related entity of person [a/datatype] (RDA:P50482): http://viaf.org/viaf/46998973 / rank
 
Normal rank
Property / has related entity of person [a/datatype] (RDA:P50482): http://viaf.org/viaf/46998973 / qualifier
 
Property / has related manifestation of person [a/datatype] (RDA:P50313)
 
rda
Property / has related manifestation of person [a/datatype] (RDA:P50313): rda / rank
 
Normal rank
Property / has related manifestation of person [a/datatype] (RDA:P50313): rda / qualifier
 
Property / has date of birth [a/datatype] (RDA:P50121)
 
1939-08-24
(August 24th, 1939)
Property / has date of birth [a/datatype] (RDA:P50121):
1939-08-24
(August 24th, 1939)
/ rank
 
Normal rank
Property / has date of birth [a/datatype] (RDA:P50121):
1939-08-24
(August 24th, 1939)
/ qualifier
 
Property / has date of death [a/datatype] (RDA:P50120)
 
2023-03-28
(March 28th, 2023)
Property / has date of death [a/datatype] (RDA:P50120):
2023-03-28
(March 28th, 2023)
/ rank
 
Normal rank
Property / has date of death [a/datatype] (RDA:P50120):
2023-03-28
(March 28th, 2023)
/ qualifier
 
Property / has authorized access point for person [a/datatype] (RDA:P50411)
 
Μπόσκου, Δ. (Δημήτρης), 1939-2023
Property / has authorized access point for person [a/datatype] (RDA:P50411): Μπόσκου, Δ. (Δημήτρης), 1939-2023 / rank
 
Normal rank
Property / has authorized access point for person [a/datatype] (RDA:P50411): Μπόσκου, Δ. (Δημήτρης), 1939-2023 / qualifier
 
Property / has surname [a/datatype] (RDA:P50291)
 
Μπόσκου
Property / has surname [a/datatype] (RDA:P50291): Μπόσκου / rank
 
Normal rank
Property / has given name [a/datatype] (RDA:P50292)
 
Δ.
Property / has given name [a/datatype] (RDA:P50292): Δ. / rank
 
Normal rank
Property / has fuller form of name [a/datatype] (RDA:P50115)
 
(Δημήτρης),
Property / has fuller form of name [a/datatype] (RDA:P50115): (Δημήτρης), / rank
 
Normal rank
Property / has country associated with person [a/object] (RDA:P50097)
 
Property / has country associated with person [a/object] (RDA:P50097): Q81052 / rank
 
Normal rank
Property / has field of activity of person (P50100)
 
Property / has field of activity of person (P50100): Q117460 / rank
 
Normal rank
Property / has field of activity of person (P50100)
 
Property / has field of activity of person (P50100): Q125643 / rank
 
Normal rank
Property / has field of activity of person (P50100)
 
Property / has field of activity of person (P50100): Q180198 / rank
 
Normal rank
Property / has profession or occupation (P50104)
 
Property / has profession or occupation (P50104): Q153783 / rank
 
Normal rank
Property / has profession or occupation (P50104)
 
Property / has profession or occupation (P50104): Q123816 / rank
 
Normal rank
Property / has language of person (P50102)
 
Property / has language of person (P50102): Greek, Modern (1453-) / rank
 
Normal rank
Property / has variant access point for person [a/datatype] (RDA:P50412)
 
Μπόσκου, Δημήτρης, 1939-2023
Property / has variant access point for person [a/datatype] (RDA:P50412): Μπόσκου, Δημήτρης, 1939-2023 / rank
 
Normal rank
Property / has variant access point for person [a/datatype] (RDA:P50412): Μπόσκου, Δημήτρης, 1939-2023 / qualifier
 
Property / has variant access point for person [a/datatype] (RDA:P50412): Μπόσκου, Δημήτρης, 1939-2023 / qualifier
 
Property / has variant access point for person [a/datatype] (RDA:P50412)
 
Boskou, Dimitrios, 1939-2023
Property / has variant access point for person [a/datatype] (RDA:P50412): Boskou, Dimitrios, 1939-2023 / rank
 
Normal rank
Property / has variant access point for person [a/datatype] (RDA:P50412): Boskou, Dimitrios, 1939-2023 / qualifier
 
Property / has variant access point for person [a/datatype] (RDA:P50412): Boskou, Dimitrios, 1939-2023 / qualifier
 
Property / has variant access point for person [a/datatype] (RDA:P50412)
 
Boskou, D. (Dēmētrēs), 1939-2023
Property / has variant access point for person [a/datatype] (RDA:P50412): Boskou, D. (Dēmētrēs), 1939-2023 / rank
 
Normal rank
Property / has variant access point for person [a/datatype] (RDA:P50412): Boskou, D. (Dēmētrēs), 1939-2023 / qualifier
 
Property / has variant access point for person [a/datatype] (RDA:P50412): Boskou, D. (Dēmētrēs), 1939-2023 / qualifier
 
Property / has variant access point for person [a/datatype] (RDA:P50412): Boskou, D. (Dēmētrēs), 1939-2023 / qualifier
 
MARC21 $7 provenance: ALA-LC romanization:Greek:2010
Property / has variant access point for person [a/datatype] (RDA:P50412)
 
Mpóskou, D. (Dīmī́trīs), 1939-2023
Property / has variant access point for person [a/datatype] (RDA:P50412): Mpóskou, D. (Dīmī́trīs), 1939-2023 / rank
 
Normal rank
Property / has variant access point for person [a/datatype] (RDA:P50412): Mpóskou, D. (Dīmī́trīs), 1939-2023 / qualifier
 
Property / has variant access point for person [a/datatype] (RDA:P50412): Mpóskou, D. (Dīmī́trīs), 1939-2023 / qualifier
 
Property / has variant access point for person [a/datatype] (RDA:P50412): Mpóskou, D. (Dīmī́trīs), 1939-2023 / qualifier
 
MARC21 $7 provenance: ISO 843:1997
Property / has source consulted (P61101)
 
Τεκμήριο: Χημεία τροφίμων, 1997:
Property / has source consulted (P61101): Τεκμήριο: Χημεία τροφίμων, 1997: / rank
 
Normal rank
Property / has source consulted (P61101): Τεκμήριο: Χημεία τροφίμων, 1997: / qualifier
 
stated as [wikidata/datatype] (P1932): σελίδα τίτλου (Δ. Μπόσκου· καθηγητού Α.Π.Θ.)
Property / has source consulted (P61101)
 
Τεκμήριο: Χημεία τροφίμων με στοιχεία τεχνολογίας τροφίμων, 1983-:
Property / has source consulted (P61101): Τεκμήριο: Χημεία τροφίμων με στοιχεία τεχνολογίας τροφίμων, 1983-: / rank
 
Normal rank
Property / has source consulted (P61101): Τεκμήριο: Χημεία τροφίμων με στοιχεία τεχνολογίας τροφίμων, 1983-: / qualifier
 
stated as [wikidata/datatype] (P1932): τόμος 1, σελίδα τίτλου (Δ.Γ. Μπόσκου· επίκουρου καθηγητή Α.Π.Θ.), πρόλογος (Δ. Μπόσκου)
Property / has source consulted (P61101)
 
Τεκμήριο: Αιρετικό αλφαβητάριο, 2023:
Property / has source consulted (P61101): Τεκμήριο: Αιρετικό αλφαβητάριο, 2023: / rank
 
Normal rank
Property / has source consulted (P61101): Τεκμήριο: Αιρετικό αλφαβητάριο, 2023: / qualifier
 
stated as [wikidata/datatype] (P1932): σελίδα τίτλου (Δημήτρης Μπόσκου), σελίδα 147 (γεννήθηκε στις 24 Αυγούστου 1939· ομότιμος καθηγητής χημείας του ΑΠΘ· ειδικός στη χημεία τροφίμων· διπλωματούχος του Τμήματος Χημείας του ΑΠΘ· διδάκτωρ και υφηγητής του ΑΠΘ· Philosophy Doctor του Πανεπιστημίου του Λονδίνου), σελίδα 148 (πέθανε στη Θεσσαλονίκη στις 28 Μαρτίου 2023)
Property / has source consulted (P61101)
 
LC/NACO (αρχείο καθιερωμένων επικεφαλίδων), ημερομηνία προσπέλασης 27 Φεβρουαρίου 2024
Property / has source consulted (P61101): LC/NACO (αρχείο καθιερωμένων επικεφαλίδων), ημερομηνία προσπέλασης 27 Φεβρουαρίου 2024 / rank
 
Normal rank
Property / has source consulted (P61101): LC/NACO (αρχείο καθιερωμένων επικεφαλίδων), ημερομηνία προσπέλασης 27 Φεβρουαρίου 2024 / qualifier
 
stated as [wikidata/datatype] (P1932): (επικεφαλίδα: Boskou, Dimitrios)

Latest revision as of 17:06, 17 March 2025

No description defined
Language Label Description Also known as
English
No label defined
No description defined

    Statements

    urn:nbn:gr:nlg:01-A010885
    0 references
    A25111
    0 references
    https://isni.org/isni/0000000035961056
    0 references
    http://viaf.org/viaf/46998973
    0 references
    1939-08-24
    (August 24th, 1939)
    0 references
    2023-03-28
    (March 28th, 2023)
    0 references
    Μπόσκου, Δ. (Δημήτρης), 1939-2023
    0 references
    Μπόσκου
    0 references
    (Δημήτρης),
    0 references
    0 references
    0 references
    0 references
    Μπόσκου, Δημήτρης, 1939-2023
    0 references
    Boskou, Dimitrios, 1939-2023
    0 references
    Boskou, D. (Dēmētrēs), 1939-2023
    ALA-LC romanization:Greek:2010
    0 references
    Mpóskou, D. (Dīmī́trīs), 1939-2023
    0 references
    Τεκμήριο: Χημεία τροφίμων, 1997:
    σελίδα τίτλου (Δ. Μπόσκου· καθηγητού Α.Π.Θ.)
    0 references
    Τεκμήριο: Χημεία τροφίμων με στοιχεία τεχνολογίας τροφίμων, 1983-:
    τόμος 1, σελίδα τίτλου (Δ.Γ. Μπόσκου· επίκουρου καθηγητή Α.Π.Θ.), πρόλογος (Δ. Μπόσκου)
    0 references
    Τεκμήριο: Αιρετικό αλφαβητάριο, 2023:
    σελίδα τίτλου (Δημήτρης Μπόσκου), σελίδα 147 (γεννήθηκε στις 24 Αυγούστου 1939· ομότιμος καθηγητής χημείας του ΑΠΘ· ειδικός στη χημεία τροφίμων· διπλωματούχος του Τμήματος Χημείας του ΑΠΘ· διδάκτωρ και υφηγητής του ΑΠΘ· Philosophy Doctor του Πανεπιστημίου του Λονδίνου), σελίδα 148 (πέθανε στη Θεσσαλονίκη στις 28 Μαρτίου 2023)
    0 references
    LC/NACO (αρχείο καθιερωμένων επικεφαλίδων), ημερομηνία προσπέλασης 27 Φεβρουαρίου 2024
    (επικεφαλίδα: Boskou, Dimitrios)
    0 references