@article{DAN_1966_168_4_a4,
     author = {E. Dynkin},
     title = {General additional conditions for a boundary value problem with oblique derivative},
     journal = {Doklady Akademii Nauk},
     pages = {737--739},
     publisher = {mathdoc},
     volume = {168},
     number = {4},
     year = {1966},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1966_168_4_a4/}
}