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Jianfeng Huang, Haihua Liang, “A uniqueness criterion of limit cycles for planar polynomial systems with homogeneous nonlinearities”, Journal of Mathematical Analysis and Applications, 457, no. 1, 2018, 498
Clàudia Valls, “Rational limit cycles on Bernoulli and Riccati equations”, Journal of Geometry and Physics, 155, 2020, 103705
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