@article{ZVMMF_1964_4_2_a15,
     author = {I. Babushka and \`E. Vitasek and M. Prager},
     title = {The closure of computation processes and the method of successive substitution},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {351--353},
     publisher = {mathdoc},
     volume = {4},
     number = {2},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1964_4_2_a15/}
}