TY - JOUR AU - J. Rohlfs TI - The Lefschetz number of an involution on the space of classes of positive definite quadratic forms. JO - Commentarii mathematici Helvetici PY - 1981 SP - 272 EP - 296 VL - 56 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMH_1981__56_139870/ ID - CMH_1981__56_139870 ER -