Voir la notice de l'article provenant de la source Math-Net.Ru
@article{VSGTU_2001_12_a5, author = {S. V. Bogatyrev}, title = {{\CYRC}{\cyri}{\cyrk}{\cyrl}{\cyrery}-{\cyru}{\cyrt}{\cyrk}{\cyri} {\cyrv}~{\cyrs}{\cyri}{\cyrs}{\cyrt}{\cyre}{\cyrm}{\cyre} {{\CYRL}{\cyrsftsn}{\cyre}{\cyrn}{\cyra}{\cyrr}{\cyrd}{\cyra}}}, journal = {Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences}, pages = {36--39}, publisher = {mathdoc}, number = {12}, year = {2001}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/VSGTU_2001_12_a5/} }
S. V. Bogatyrev. Циклы-утки в~системе Льенарда. Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences, Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences, no. 12 (2001), pp. 36-39. http://geodesic.mathdoc.fr/item/VSGTU_2001_12_a5/