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.
Tuvi Etzion, Alan Hartman. Towards a Large Set of Steiner Quadruple Systems. SIAM J. Discrete Math., 4(2):182-195, 1991.
Abstract is missing.