%0 Journal Article %A T. N. Vankova %A L. V. Detchenya %A V. M. Petsevich %A A. O. Seliverstova %T On a class of systems of second order differential equations without mobile critical features %J Problemy fiziki, matematiki i tehniki %D 2018 %P 62-65 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/PFMT_2018_4_a10/ %G ru %F PFMT_2018_4_a10