@article{SM_1993_74_2_a11,
     author = {V. G. Zvyagin},
     title = {On the oriented degree of a certain class of perturbations of {Fredholm} mappings, and on bifurcation of solutions of a~nonlinear boundary value problem with noncompact perturbations},
     journal = {Sbornik. Mathematics},
     pages = {487--512},
     publisher = {mathdoc},
     volume = {74},
     number = {2},
     year = {1993},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1993_74_2_a11/}
}