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@article{MZM_1989_45_3_a4, author = {F. V. Guseinov}, title = {Lower semicontinuous extension of the fundamental problem of calculus of variations}, journal = {Matemati\v{c}eskie zametki}, pages = {43--52}, publisher = {mathdoc}, volume = {45}, number = {3}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1989_45_3_a4/} }
F. V. Guseinov. Lower semicontinuous extension of the fundamental problem of calculus of variations. Matematičeskie zametki, Tome 45 (1989) no. 3, pp. 43-52. http://geodesic.mathdoc.fr/item/MZM_1989_45_3_a4/