%0 Journal Article %A A. T. Sazonova %T On the results of the study of simplified systems in the problem of motion of four bodies in a plane %J Problemy fiziki, matematiki i tehniki %D 2015 %P 66-69 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/PFMT_2015_3_a12/ %G ru %F PFMT_2015_3_a12