@article{DAN_1972_206_6_a13,
     author = {Ya. N. Fel'd},
     title = {Diffraction of a scalar wave on a nonclosed surface with a {Dirichlet} boundary condition},
     journal = {Doklady Akademii Nauk},
     pages = {1321--1324},
     publisher = {mathdoc},
     volume = {206},
     number = {6},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1972_206_6_a13/}
}