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2.
Directory of Online Databases (Cuadra/ Elsevier, New York: two complete directory issues are published annually, and two update supplements).
3.
Production and availability of online databases in 1989 (IMO Working Paper 90/5. Commission of the European Communities (DG XIII), Luxembourg. December 1990).
4.
Based on previously unpublished data from CCIS.
5.
C. Oppenheim .The relationship between online hosts and database producers (Library and information briefings No. 24. Library & Information Technology Centre, Polytechnic of the South Bank. London. 1990).
6.
CICI/EC coordinated survey of professional hosts and information providers in the European Communities. 1989/90, UK survey (CICI, in press).
7.
M.S. White .Don't you know, or have you something to hide ? Information World Review, No. 24 (March 1988) 16.
8.
D.R. Worlock .Restructuring the European Information industry . In: Online Information 90, Proceedings ( Learned Information (Europe), Oxford, 1990) 243-250.
9.
H.R. Colher, What actually is the online universe ? Proceedings 12th International Online Information Meeting, London 6-8 December 1988, Vol. 2. 723-732.
10.
H. East and V. Forrest.Institutional markets for online services: analysis of supply-side competition in the UK. Online Review14 (1990) 238-250.
11.
H. East, Balancing the books: resourcing electronic information services in academic and public libraries (CCIS Policy Paper No. 3, British Library R&D Report No. 6057, Centre for Communication and Information Studies , London, 1991 ).
12.
T McSean and D. Law, Is CD-ROM a transtent technology? Library Association Record92(11) ( 1990) 214-215, 217.