1. Complete designs with blocks of maximal multiplicity;Constantine;J. Stat. Planning Inference 7 (1983), 289-294; corrigendum: ibid.,1983
2. On theory and applications of BIB designs and repeated blocks;Foody;Ann. Statist. 5 (1977), 932-945; corrigendum: ibid.,1979
3. The module structure of integral designs;Graver;J. Combin. Theory, Ser. A,1973
4. Some results on t-wise balanced designs;Kramer;Ars Combinatoria,1983