%0 Journal Article %A N. V. Kovalev %T Straightforward expansion of non-autonomous integrals for quasi-conservative systems with one degree of freedom %J Žurnal Srednevolžskogo matematičeskogo obŝestva %D 2016 %P 32-40 %V 18 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/SVMO_2016_18_3_a2/ %G ru %F SVMO_2016_18_3_a2