@article{DAN_1965_161_1_a11,
     author = {A. L. Onishchik},
     title = {On deformations of fiber spaces},
     journal = {Doklady Akademii Nauk},
     pages = {45--47},
     year = {1965},
     volume = {161},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_161_1_a11/}
}