@article{INTO_2020_185_a2,
     author = {I. A. Andreeva and A. F. Andreev},
     title = {Qualitative research in the {Poincar\'e} circle of one family of dynamical systems},
     journal = {Itogi nauki i tehniki. Sovremenna\^a matematika i e\"e prilo\v{z}eni\^a. Temati\v{c}eskie obzory},
     pages = {19--27},
     publisher = {mathdoc},
     volume = {185},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTO_2020_185_a2/}
}