@article{TIMM_2006_12_1_a16,
     author = {A. G. Chentsov},
     title = {Nonsequential approximate solutions in abstract problems of attainability},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {216--241},
     publisher = {mathdoc},
     volume = {12},
     number = {1},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2006_12_1_a16/}
}