@article{IVM_1962_1_a10,
     author = {P. A. Murav'ev},
     title = {A generalized derivative and its application to ordinary differential equations},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {89--100},
     publisher = {mathdoc},
     number = {1},
     year = {1962},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1962_1_a10/}
}