TY - JOUR AU - Kantor, William M. TI - Elations of Designs JO - Canadian journal of mathematics PY - 1970 SP - 897 EP - 904 VL - 22 IS - 5 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1970-103-0/ DO - 10.4153/CJM-1970-103-0 ID - 10_4153_CJM_1970_103_0 ER -