@article{MZM_2001_70_5_a4,
     author = {V. G. Il'ichev},
     title = {Universal {Margin} {Factors} and {Selection} {Criteria} in {Variable} {Environment}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {691--704},
     publisher = {mathdoc},
     volume = {70},
     number = {5},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2001_70_5_a4/}
}