1. A new balanced incomplete block design;Battacharya;Sci. Culture,1944
2. Factorizations of bn ± 1, Contemporary Mathematics Ser.;Brillhart;AMS,1983
3. A new nonextensible (16 24, 9, 6, 3) design;Brown;JCT (a),1975
4. Enumeration of symmetric designs (25, 9, 3);Denniston;Annals Discrete Math.,1982
5. Abstract data types and graph isomorphism;Kocay;J. Combin. Info. and S.S.,1984