Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
Stephen C. Johnson, Ronald L. Graham. Problem #7. ACM Comm. Computer Algebra, 8(1):4, 1974. [doi]
Abstract is missing.