Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1961_137_6_a9, author = {Yu. I. Levin}, title = {Some spaces with affine connection admitting motions}, journal = {Doklady Akademii Nauk}, pages = {1295--1298}, publisher = {mathdoc}, volume = {137}, number = {6}, year = {1961}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1961_137_6_a9/} }
Yu. I. Levin. Some spaces with affine connection admitting motions. Doklady Akademii Nauk, Tome 137 (1961) no. 6, pp. 1295-1298. http://geodesic.mathdoc.fr/item/DAN_1961_137_6_a9/