TY - JOUR AU - Rudolf Schmid AU - Tudor Ratiu TI - The Differentiable Structure of Three Remarkable Diffeomorphism Groups. JO - Mathematische Zeitschrift PY - 1981 SP - 81 EP - 100 VL - 177 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1981__177_173048/ ID - MZ_1981__177_173048 ER -