@article{DAN_1973_210_6_a3,
     author = {F. D. Gakhov},
     title = {A nonlinear boundary-value problem with admissible zeros on the contour},
     journal = {Doklady Akademii Nauk},
     pages = {1269--1272},
     publisher = {mathdoc},
     volume = {210},
     number = {6},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_210_6_a3/}
}