1. Mathematische Unterhaltungen und Spiele;Ahrens,1901
2. I. Anderson, C.J. Colbourn, J.H. Dinitz, T.S. Griggs, Design theory: antiquity to 1950, in: [10], pp. 11–22.
3. Maximal subgroups of low rank of finite symmetric and alternating groups;Bannai;J. Fac. Sci. Univ. Tokyo Sect. IA Math.,1971
4. Design Theory, vol. I;Beth,1999
5. The Magma algebra system I: the user language;Bosma;J. Symbolic Comput.,1997