@article{DAN_1995_342_6_a1,
     author = {M. A. Krasnosel'skii and A. V. Pokrovskii},
     title = {On elliptic equations with discontinuous nonlinearities},
     journal = {Doklady Akademii Nauk},
     pages = {731--734},
     publisher = {mathdoc},
     volume = {342},
     number = {6},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1995_342_6_a1/}
}