TY - JOUR AU - Ellers, Erich W. TI - Bireflectionality in Classical Groups JO - Canadian journal of mathematics PY - 1977 SP - 1157 EP - 1162 VL - 29 IS - 6 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1977-115-2/ DO - 10.4153/CJM-1977-115-2 ID - 10_4153_CJM_1977_115_2 ER -