Voir la notice de l'article provenant de la source Math-Net.Ru
@article{TRSPY_1987_180_a141, author = {V. V. Shan'kov}, title = {Difference operators with variable step}, journal = {Informatics and Automation}, pages = {229--230}, publisher = {mathdoc}, volume = {180}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TRSPY_1987_180_a141/} }
V. V. Shan'kov. Difference operators with variable step. Informatics and Automation, Theory of functions and related questions of analysis, Tome 180 (1987), pp. 229-230. http://geodesic.mathdoc.fr/item/TRSPY_1987_180_a141/