@article{ZVMMF_1997_37_10_a1,
     author = {A. F. Izmailov and A. A. Tret'yakov},
     title = {Methods for finding singular solutions of nonlinear operator equations in the absence of 2-regularity},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1157--1162},
     publisher = {mathdoc},
     volume = {37},
     number = {10},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1997_37_10_a1/}
}