1. Nearly Kirkman triple systems;Baker;Utilitas Math.,1977
2. J.-C. Bermond and J. Novák, personal communication.
3. Further results on the construction of mutually orthogonal Latin squares and the falsity of Euler's conjecture;Bose;Canad. J. Math.,1960
4. A(17,6,4) = 20 or the nonexistence of the scarce design SD(4,1;17,21);Brouwer;Math. Centre Report ZW62,1975
5. A. E. Brouwer, H. Hanani, and A. Schrijver, Group-divisible designs with block size 4, submitted.