@article{IVM_1991_6_a10,
     author = {A. G. Chentsov},
     title = {On the asymptotic equivalence of relaxations of extremal problems},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {53--60},
     year = {1991},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1991_6_a10/}
}