TY - JOUR AU - Helminck, Aloysius G. AU - Schwarz, Gerald W. TI - Smoothness of Quotients Associated With a Pair of Commuting Involutions JO - Canadian journal of mathematics PY - 2004 SP - 945 EP - 962 VL - 56 IS - 5 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-2004-043-7/ DO - 10.4153/CJM-2004-043-7 ID - 10_4153_CJM_2004_043_7 ER -