1. Erfahrungen mit CD-ROMs in einer Industrie-Informations-Abteilung;Lobeck;NfD Nachr. Dok.,1989
2. Use of CD-ROM for patent information;Stillger;World Patent Information,1988
3. Möglichkeiten des Einsatzes von CD-ROM in der Patent information;Stillger;Nachr. Dok.,1987
4. WIPO Permanent Committee on Industrial Property Information. Ad hoc Working Group on Optical Storage. Series of Documents PCIPI/OS/…, e.g. PCIPI/OS/III/2 for the report on the third session 1990-03–26/30.
5. Integrated CD-ROM databases: the ideal solution for small and medium size publishers;Moore;Laserdisk Profess.,1990