Classes:
Article-Reference,
Artwork-Reference,
Author-Name,
Biblio-Name,
Biblio-Nl-Text,
Biblio-Text,
Book-Publication-Data-Constraint,
Book-Reference,
Book-Section-Reference,
Cartographic-Map-Reference,
City-Address,
Computer-Program-Reference,
Conference,
Doctoral-Thesis-Reference,
Edited-Book-Reference,
Generic-Unpublished-Reference,
Inherits-Author-From-Document,
Inherits-Publisher-From-Document,
Inherits-Title-From-Document,
Inherits-Year-From-Document,
Journal-Article-Reference,
Keyword,
Magazine-Article-Reference,
Masters-Thesis-Reference,
Misc-Publication-Reference,
Multimedia-Document-Reference,
Newspaper-Article-Reference,
Non-Publication-Reference,
Personal-Communication-Reference,
Proceedings,
Proceedings-Paper-Reference,
Publication-Reference,
Publisher-Name,
Reference,
Technical-Manual-Reference,
Technical-Report-Reference,
Thesis-Reference,
TitleInstances: Author.Name-Of,
Conf.Address,
Conf.Date,
Conf.Organization,
Conference-Of,
Edition-Of,
Has-Author-Name,
Has-Name,
Has-Penname,
Has-Textual-Representation,
Name,
Publisher.Address,
Ref.Abstract,
Ref.Address,
Ref.Author,
Ref.Booktitle,
Ref.Day,
Ref.Document,
Ref.Edition,
Ref.Editor,
Ref.Issue,
Ref.Keywords,
Ref.Labels,
Ref.Magazine-Name,
Ref.Month,
Ref.Newspaper-Name,
Ref.Notes,
Ref.Number-Of-Volumes,
Ref.Organization,
Ref.Pages,
Ref.Periodical,
Ref.Publisher,
Ref.Report-Number,
Ref.Secondary-Author,
Ref.Secondary-Title,
Ref.Series-Editor,
Ref.Tertiary-Author,
Ref.Translator,
Ref.Type-Of-Work,
Ref.Volume,
Ref.Year