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@article{DE_1966_2_3_a12, author = {V. I. Rozhkov}, title = {Equations of neutral types with variable small retardation}, journal = {Differencialʹnye uravneni\^a}, pages = {407--416}, publisher = {mathdoc}, volume = {2}, number = {3}, year = {1966}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1966_2_3_a12/} }
V. I. Rozhkov. Equations of neutral types with variable small retardation. Differencialʹnye uravneniâ, Tome 2 (1966) no. 3, pp. 407-416. http://geodesic.mathdoc.fr/item/DE_1966_2_3_a12/