@article{DAN_1979_245_2_a3,
     author = {A. A. Zlotnik},
     title = {A projection-difference scheme for the vibrating-string equation},
     journal = {Doklady Akademii Nauk},
     pages = {292--295},
     publisher = {mathdoc},
     volume = {245},
     number = {2},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1979_245_2_a3/}
}