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@article{DE_1989_25_8_a18, author = {A. M. Khludnev}, title = {Limit transitions in optimal control problems for a fourth-order operator}, journal = {Differencialʹnye uravneni\^a}, pages = {1427--1435}, publisher = {mathdoc}, volume = {25}, number = {8}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1989_25_8_a18/} }
A. M. Khludnev. Limit transitions in optimal control problems for a fourth-order operator. Differencialʹnye uravneniâ, Tome 25 (1989) no. 8, pp. 1427-1435. http://geodesic.mathdoc.fr/item/DE_1989_25_8_a18/