Information systems:   Proceedings of the IFIP TC 8.1 working conference on theoretical and formal aspects of information systems 
/ Sitges, Barcelona, Spain, 16-18 April 1985 
 - Amsterdam:   North- Holland,   1985 
 - x, 236p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information science
<br/><br/><label>Subjects--Index Terms: </label>Entity-relationship 
<br/><br/><label>Universal Decimal Class. No.: </label>D 002:681.3(082.2)  / M5