@article{VMUMM_1985_1_a13,
     author = {V. V. Fedorchuk},
     title = {Extension of fibre bundles},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {60--62},
     publisher = {mathdoc},
     number = {1},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1985_1_a13/}
}