@article{DAN_1968_182_4_a9,
     author = {N. N. Yanenko and Yu. I. Shokin},
     title = {The correctness of the first differential approximations of difference schemes},
     journal = {Doklady Akademii Nauk},
     pages = {776--778},
     publisher = {mathdoc},
     volume = {182},
     number = {4},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_182_4_a9/}
}