TY - JOUR AU - Mayer, W. AU - Thomas, T. Y. TI - Fields of parallel vectors in non-analytic manifolds in the large JO - Compositio Mathematica PY - 1938 SP - 198 EP - 207 VL - 5 PB - Johnson Reprint Corporation UR - http://www.numdam.org/item/CM_1938__5__198_0/ LA - en ID - CM_1938__5__198_0 ER -