@article{ZVMMF_2009_49_7_a3,
     author = {A. V. Arutyunov and B. D. Gel'man},
     title = {Minimum of a~functional in a~metric space and fixed points},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1167--1174},
     publisher = {mathdoc},
     volume = {49},
     number = {7},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2009_49_7_a3/}
}