@article{INTO_2020_187_a6,
     author = {M. V. Shamolin},
     title = {Topographic {Poincar\'e} systems and comparison systems of small and high orders},
     journal = {Itogi nauki i tehniki. Sovremenna\^a matematika i e\"e prilo\v{z}eni\^a. Temati\v{c}eskie obzory},
     pages = {50--67},
     publisher = {mathdoc},
     volume = {187},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTO_2020_187_a6/}
}