@article{IVM_1981_12_a8,
     author = {S. V. Pereverzev},
     title = {Sharp estimates of approximation by {Hermitian} splines on a~class of differentiable functions of two variables},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {58--66},
     publisher = {mathdoc},
     number = {12},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1981_12_a8/}
}