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.
Andries E. Brouwer, Alexander Schrijver, Haim Hanani. Group divisible designs with block-size four. Discrete Mathematics, 306(10-11):939-947, 2006. [doi]
Abstract is missing.