Document (#4851)

Author
Nicholls, P.
Sutherland, T.
Title
CD-ROM databases : a survey of commercial publishing activity
Source
Database. 15(1992) no.1, S.36-41
Year
1992
Abstract
Reports on: commercially available CD-ROM titles for 1985-91; plots the comparative growth of CD-ROM and online titles for 1984-92; database type trends (indexes, source and reference) for 1987-91; subject distribution (social services 43%, science and technology 35%, arts and humanities 8% and general 13%); library and information science databases (including catalogues); CD-ROM hardware platform trends for 1990-91; CD-ROM update frequency trends; and overall, medium price trends for 1987-91. The medium price for CD-ROM databases has declined from $ 1273 in 1987 to $ 702 in 1991
Theme
Informationsmittel

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