@article{IVM_1962_2_a6,
     author = {Yu. L. Daletskii},
     title = {Differentiation of {non-Hermitian} matrix functions depending on a parameter},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {52--64},
     publisher = {mathdoc},
     number = {2},
     year = {1962},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1962_2_a6/}
}