@article{IVM_1976_8_a6,
     author = {R. M. Min'kova},
     title = {Convergence of the derivatives of linear operators},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {52--59},
     publisher = {mathdoc},
     number = {8},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1976_8_a6/}
}