1. A. Assaf, E. Mendelsohn and D.R. Stinson, On resolvable coverings of pairs by triples, Utilitas Math., to appear.
2. Nearly Kirkman triple systems;Baker;Utilitas Math.,1977
3. Group divisible designs with block-size four;Brouwer;Discrete Math.,1977
4. Optimal packings of K4's into a Kn;Brouwer;J. Combin. Theory Ser. A,1979
5. The number of mutually orthogonal Latin squares: a table up to order 10 000;Brouwer,1979