@article{DA_1983_23_a7,
     author = {V. V. Servakh},
     title = {The {Akers{\textendash}Friedman} problem},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {70--81},
     year = {1983},
     number = {23},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_1983_23_a7/}
}