Title:
Journal of the ACM
Abbreviated Title:
J. ACM
Publisher:
Association for Computing Machinery (ACM)
ISSN
(Print):
00045411
Publication date
(Print):
July
1990
Volume: 37
Issue: 3
Pages: 549-587
Article
DOI: 10.1145/79147.79161
SO-VID: 23ed8aaf-80fe-4083-a9fd-b8efb7b7982e