@article{DAN_1965_165_6_a8,
     author = {A. A. Samarskii},
     title = {Additivity principle for the construction of efficient difference schemes},
     journal = {Doklady Akademii Nauk},
     pages = {1253--1256},
     publisher = {mathdoc},
     volume = {165},
     number = {6},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_165_6_a8/}
}