1. Pairwise orthogonal symmetric Latin squares;Beaman,1978
2. On the existence of normalized Room squares;Chong;Nanta Math.,1974
3. A note on Howell designs of odd side;Dinitz;Utilitas Math.,1980
4. A fast algorithm for finding strong starters;Dinitz;SIAM J. Algebraic and Discrete Methods,1981
5. The number of pairwise orthogonal symmetric Latin squares;Gross;Utilitas Math.,1973