The Strasbourg Data Centre normally distributes the full version of the
catalogues. It will also be accessible
through the CDS/ESRIN
facilities called VizieR (http://vizier.u-strasbg.fr/cgi-bin/VizieR).
An access is also provided by our World Wide Web service at
http://obswww.unige.ch/gcpd/ (Mermilliod et al. 1997).
Acknowledgements
We are grateful to Dr. J.-C. Mermilliod for his valuable advices and constant help, and to D. Lechaire for keying the data in the computer. This long-term work has been supported by continuous grants from the Swiss National Foundation for Scientific Research (FNRS).