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@article{DE_1985_21_8_a10, author = {Sh. Bouzar and A. A. Kuleshov}, title = {Differential operators of constant strength}, journal = {Differencialʹnye uravneni\^a}, pages = {1369--1376}, publisher = {mathdoc}, volume = {21}, number = {8}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1985_21_8_a10/} }
Sh. Bouzar; A. A. Kuleshov. Differential operators of constant strength. Differencialʹnye uravneniâ, Tome 21 (1985) no. 8, pp. 1369-1376. http://geodesic.mathdoc.fr/item/DE_1985_21_8_a10/