TY - JOUR AU - Patterson, Leif-Norman TI - Connexions and Prolongations JO - Canadian journal of mathematics PY - 1975 SP - 766 EP - 791 VL - 27 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1975-085-4/ DO - 10.4153/CJM-1975-085-4 ID - 10_4153_CJM_1975_085_4 ER -