@article{PFMT_2015_3_a12,
     author = {A. T. Sazonova},
     title = {On the results of the study of simplified systems in the problem of motion of four bodies in a plane},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {66--69},
     publisher = {mathdoc},
     number = {3},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2015_3_a12/}
}