@article{MZM_2013_94_2_a1,
     author = {Yu. N. Belyaev},
     title = {On the {Calculation} of {Functions} of {Matrices}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {175--182},
     publisher = {mathdoc},
     volume = {94},
     number = {2},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2013_94_2_a1/}
}