Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1971_198_5_a11, author = {A. G. Iosifyan and N. P. Konopleva}, title = {Isoperimetric variational problems in field theory}, journal = {Doklady Akademii Nauk}, pages = {1036--1039}, publisher = {mathdoc}, volume = {198}, number = {5}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1971_198_5_a11/} }
A. G. Iosifyan; N. P. Konopleva. Isoperimetric variational problems in field theory. Doklady Akademii Nauk, Tome 198 (1971) no. 5, pp. 1036-1039. http://geodesic.mathdoc.fr/item/DAN_1971_198_5_a11/