@article{DAN_1960_131_3_a2,
     author = {Yu. M. Berezanskii},
     title = {Some examples of nonclassical boundary-value problems for partial differential equations},
     journal = {Doklady Akademii Nauk},
     pages = {478--481},
     publisher = {mathdoc},
     volume = {131},
     number = {3},
     year = {1960},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1960_131_3_a2/}
}