@article{ZVMMF_1991_31_6_a5,
     author = {G. M. Vainikko},
     title = {A piecewise-constant approximation of the solutions of multidimensional weakly singular integral equations},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {832--849},
     publisher = {mathdoc},
     volume = {31},
     number = {6},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1991_31_6_a5/}
}