@article{DA_1988_28_a2,
     author = {Yu. I. Berdyshev and A. G. Chentsov},
     title = {A problem of sequential optimization under convex constraints},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {12--20},
     publisher = {mathdoc},
     number = {28},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_1988_28_a2/}
}