ACM - affordances
R. L. Graham
Proceedings of the November 16-18, 1971, fall joint computer conference on - AFIPS ’71 (Fall)
Proc of IFIP Congress 71 1971
A n5/2 algorithm for maximum matchings in bipartite
pp 841--848
pp 145--158
Also Industrial Scheduling ed by F F Muth and G L Thompson Prentice-Hall Englewood Cliffs NJ 1963
pp 159--175