@article{ZVMMF_1991_31_1_a1,
     author = {L. A. Knizhnerman},
     title = {Calculation of functions of unsymmetric matrices using {Arnoldi's} method},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {5--16},
     publisher = {mathdoc},
     volume = {31},
     number = {1},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1991_31_1_a1/}
}