TY - JOUR AU - Erik Kjaer Petersen TI - Geometrically Defined Transfers, Comparisons. JO - Mathematische Zeitschrift PY - 1982 SP - 535 EP - 544 VL - 180 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1982__180_173210/ ID - MZ_1982__180_173210 ER -