Geodesic
A fixed point principle
Doklady Akademii Nauk, Tome 198 (1971) no. 3, pp. 506-508 
A. E. Gel'man. A fixed point principle. Doklady Akademii Nauk, Tome 198 (1971) no. 3, pp. 506-508. http://geodesic.mathdoc.fr/item/DAN_1971_198_3_a3/
@article{DAN_1971_198_3_a3,
     author = {A. E. Gel'man},
     title = {A fixed point principle},
     journal = {Doklady Akademii Nauk},
     pages = {506--508},
     year = {1971},
     volume = {198},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1971_198_3_a3/}
}
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UR  - http://geodesic.mathdoc.fr/item/DAN_1971_198_3_a3/
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ID  - DAN_1971_198_3_a3
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