The blue social bookmark and publication sharing system.
Log in with your username.
I've lost my password.
Log in with your OpenID-Provider.
journals/sigir/X77m, Abstracts., 20-22, 1977, SIGIR Forum, 11, 4, http://dblp.uni-trier.de/db/journals/sigir/sigir11.html#X77m, db/journals/sigir/X77m.html, forum/11-4/P020.pdf