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@article{DE_1999_35_5_a2, author = {A. P. Afanas'ev}, title = {A generalized isoperimetric problem with a linear shift in the objective function}, journal = {Differencialʹnye uravneni\^a}, pages = {600--605}, publisher = {mathdoc}, volume = {35}, number = {5}, year = {1999}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1999_35_5_a2/} }
A. P. Afanas'ev. A generalized isoperimetric problem with a linear shift in the objective function. Differencialʹnye uravneniâ, Tome 35 (1999) no. 5, pp. 600-605. http://geodesic.mathdoc.fr/item/DE_1999_35_5_a2/