Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MAN_1920__81_158826, author = {H. Beck}, title = {\"Uber lineare {Somenmannigfaltigkeiten}}, journal = {Mathematische Annalen}, pages = {187--218}, publisher = {mathdoc}, volume = {81}, year = {1920}, zbl = {47.0579.03}, url = {http://geodesic.mathdoc.fr/item/MAN_1920__81_158826/} }
H. Beck. Über lineare Somenmannigfaltigkeiten. Mathematische Annalen, Tome 81 (1920), pp. 187-218. http://geodesic.mathdoc.fr/item/MAN_1920__81_158826/