Lijuan Sheng, Maoan Han, Valery Romanovsky, “On the Number of Limit Cycles by Perturbing a Piecewise Smooth Liénard Model”, Int. J. Bifurcation Chaos, 26:10 (2016), 1650168
Jian-ping Shi, Ji-bin Li, “Bifurcations of limit cycles in a <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:mrow><mml:msub><mml:mrow><mml:mi>Z</mml:mi></mml:mrow><mml:mrow><mml:mn>6</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>-equivariant planar vector field of degree 7”, Applied Mathematics and Computation, 244 (2014), 191
A. Álvarez, J. L. Bravo, P. Mardešić, “Inductive solution of the tangential center problem on zero-cycles”, Mosc. Math. J., 13:4 (2013), 555–583
Salomón Rebollo-Perdomo, “Complete Abelian integrals for polynomials whose generic fiber is biholomorphic to”, Journal of Mathematical Analysis and Applications, 2012
Maoan Han, Jibin Li, “Lower bounds for the Hilbert number of polynomial systems”, Journal of Differential Equations, 2011
Черкас Л.А., “Предельные циклы при возмущении квадратичного центра с симметрией”, Дифференциальные уравнения, 47:8 (2011), 1067–1076
Sergey Benditkis, Dmitry Novikov, “On the number of zeros of Melnikov functions”, Annales de la Faculté des sciences de Toulouse : Mathématiques, 20:3 (2011), 465
К. Кристофер, П. Мардешич, “Проблема монодромии и инфинитезимальная проблема фокуса”, Функц. анализ и его прил., 44:1 (2010), 27–43 ; C. Christopher, P. Mardešic, “The Monodromy Problem and the Tangential Center Problem”, Funct. Anal. Appl., 44:1 (2010), 22–35
Hossein Movasati, Evilson Vieira, “Projective limit cycles”, Mosc. Math. J., 9:4 (2009), 855–866
Weigu Li, Jaume Llibre, Jiazhong Yang, Zhifen Zhang, “Limit Cycles Bifurcating from the Period Annulus of Quasi-Homogeneous Centers”, J Dyn Diff Equat, 2008