@article{INTO_2020_174_a6,
     author = {M. V. Shamolin},
     title = {Dissipative systems: {Relative} roughness, nonroughness of various degrees, and integrability},
     journal = {Itogi nauki i tehniki. Sovremenna\^a matematika i e\"e prilo\v{z}eni\^a. Temati\v{c}eskie obzory},
     pages = {70--82},
     publisher = {mathdoc},
     volume = {174},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTO_2020_174_a6/}
}