%0 Journal Article %A V. A. Yaroshevskii %T Asymptotic solution of the equation of motion of certain conservative systems with slowly varying parameters %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1964 %P 363-367 %V 4 %N 2 %U http://geodesic.mathdoc.fr/item/ZVMMF_1964_4_2_a18/ %G ru %F ZVMMF_1964_4_2_a18