@article{DAN_1988_303_1_a2,
     author = {Ya. M. Kotlyar},
     title = {The equivalent equation method for solving nonlinear problems},
     journal = {Doklady Akademii Nauk},
     pages = {21--24},
     publisher = {mathdoc},
     volume = {303},
     number = {1},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1988_303_1_a2/}
}