@article{TRSPY_1973_122_a4,
     author = {N. N. Yanenko and Yu. I. Shokin},
     title = {The group classification of difference schemes for the system of equations of gas dynamics},
     journal = {Informatics and Automation},
     pages = {85--97},
     publisher = {mathdoc},
     volume = {122},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1973_122_a4/}
}