@article{DAN_1971_198_6_a3,
     author = {V. M. Krasnosel'skii},
     title = {The projection method for the study of bifurcation of the zero solution of a nonlinear operator equation with multidimensional bifurcation},
     journal = {Doklady Akademii Nauk},
     pages = {1265--1268},
     publisher = {mathdoc},
     volume = {198},
     number = {6},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1971_198_6_a3/}
}