@article{DAN_1973_210_1_a10,
     author = {R. N. Shcherbakov and V. V. Slukhaev},
     title = {Differential-topological aspects of {Cartan{\textquoteright}s} method},
     journal = {Doklady Akademii Nauk},
     pages = {44--47},
     year = {1973},
     volume = {210},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_210_1_a10/}
}