List of contents and author index volume 4, 1979
Grammatical data base model
Permitting updates through views of data bases
Experiments with a very efficient heuristic for clustering problems
LEGOL 2.0: A relational specification language for complex rules
A heuristic approach for determining the optimal degree of file inversion
Reports and theses
Announcement Employment Register ACM Computer Science Conference Radisson Muehlebach Hotel, Kansas City, Missouri 11–14 February 1980