%0 Journal Article %A I. V. Belyakov %A A. M. Stepin %T The extremal property of multidimensional Chebyshev mappings %J Doklady Akademii Nauk %D 1997 %P 11-14 %V 352 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1997_352_1_a1/ %G ru %F DAN_1997_352_1_a1