TY - JOUR AU - Yury J. Ionin TI - New symmetric designs from regular Hadamard matrices JO - The electronic journal of combinatorics PY - 1998 VL - 5 UR - http://geodesic.mathdoc.fr/articles/10.37236/1339/ DO - 10.37236/1339 ID - 10_37236_1339 ER -