The blue social bookmark and publication sharing system.
Log in with your username.
I've lost my password.
Log in with your OpenID-Provider.
conf/xp/1983, XP4.5 Workshop on Database Theory, 1983 Palo Alto, California, USA, XP4.5 Workshop on Database Theory, 1983, http://dblp.uni-trier.de/db/conf/xp/xp1983.html