Distributori di banche dati,

servizi di Database Networking e correlati


OVID Technologies
http://www.ovid.com

SILVERPLATTER
http://www.silverplatter.com

CAMBRIDGE SCIENTIFIC ABSTRACTS
http://www.csa.com

RESEARCH LIBRARIES GROUP RLG Eureka
http://www.rlg.com

INFORMATION ACCESS COMPANY International Division
http://www.international.iacnet.com

ENGINEERING INFORMATION INC.
http://www.ei.org
CHADWYCK-HEALEY
http://www.chadwyck.co.uk

UMI - University Microfilm International
http://www.umi.com

ISI - Institut for Scientific Information
http://www.isinet.com

H.W.WILSON
http://www.hwwilson.com




a cura di Antonella De Robbio, 27 gennaio 1999