%0 Journal Article %A V. I. Zubov %T Conservative numerical methods for the integration of differential %J Doklady Akademii Nauk %D 1997 %P 446-448 %V 354 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1997_354_4_a2/ %G ru %F DAN_1997_354_4_a2