@article{DAN_1958_122_3_a6,
     author = {R. L. Frum-Ketkov},
     title = {Homological properties of original point images in the case of manifold mappings increasing the dimension},
     journal = {Doklady Akademii Nauk},
     pages = {349--351},
     publisher = {mathdoc},
     volume = {122},
     number = {3},
     year = {1958},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1958_122_3_a6/}
}