@article{TRSPY_1975_127_a2,
     author = {N. K. Korenev},
     title = {The number of solutions of a certain difference scheme},
     journal = {Informatics and Automation},
     pages = {20--26},
     publisher = {mathdoc},
     volume = {127},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1975_127_a2/}
}