Voir la notice de l'article provenant de la source Numdam
@article{CM_1936__3__453_0, author = {Thomas, T. Y.}, title = {Fields of parallel vectors in the large}, journal = {Compositio Mathematica}, pages = {453--468}, publisher = {Johnson Reprint Corporation}, volume = {3}, year = {1936}, zbl = {0015.12604}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CM_1936__3__453_0/} }
Thomas, T. Y. Fields of parallel vectors in the large. Compositio Mathematica, Tome 3 (1936), pp. 453-468. http://geodesic.mathdoc.fr/item/CM_1936__3__453_0/