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@article{DAN_1966_170_2_a8, author = {B. P. Kufarev}, title = {Relations of the type ``length and area principle''}, journal = {Doklady Akademii Nauk}, pages = {268--270}, publisher = {mathdoc}, volume = {170}, number = {2}, year = {1966}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1966_170_2_a8/} }
B. P. Kufarev. Relations of the type ``length and area principle''. Doklady Akademii Nauk, Tome 170 (1966) no. 2, pp. 268-270. http://geodesic.mathdoc.fr/item/DAN_1966_170_2_a8/