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