Voir la notice de l'article provenant de la source Math-Net.Ru
@article{KVANT_2019_12_a3, author = {V. Solov'ev and S. Dvoryaninov}, title = {{\CYRCH}{\cyrt}{\cyro} {\cyrt}{\cyra}{\cyrk}{\cyro}{\cyre} {\cyrf}{\cyra}{\cyrz}{\cyro}{\cyrv}{\cyrery}{\cyrishrt} {\cyrp}{\cyro}{\cyrr}{\cyrt}{\cyrr}{\cyre}{\cyrt}}, journal = {Kvant}, pages = {27--30}, publisher = {mathdoc}, number = {12}, year = {2019}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2019_12_a3/} }
V. Solov'ev; S. Dvoryaninov. Что такое фазовый портрет. Kvant, no. 12 (2019), pp. 27-30. http://geodesic.mathdoc.fr/item/KVANT_2019_12_a3/