@article{DAN_1994_334_4_a6,
     author = {P. I. Naumkin and I. A. Shishmarev},
     title = {On a relation between solutions of different nonlinear equations},
     journal = {Doklady Akademii Nauk},
     pages = {429--432},
     publisher = {mathdoc},
     volume = {334},
     number = {4},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1994_334_4_a6/}
}