4 citations to https://www.mathnet.ru/rus/mmj382
  1. Li T., Llibre J., “Phase Portraits of Separable Quadratic Systems and a Bibliographical Survey on Quadratic Systems”, Expo. Math., 39:4 (2021), 540–565  crossref  mathscinet  isi  scopus
  2. M.J. Álvarez, B. Coll, P. De Maesschalck, R. Prohens, “Asymptotic lower bounds on Hilbert numbers using canard cycles”, Journal of Differential Equations, 268:7 (2020), 3370  crossref
  3. Martins R.M., Gomide O.M.L., “Limit Cycles For Quadratic and Cubic Planar Differential Equations Under Polynomial Perturbations of Small Degree”, Discret. Contin. Dyn. Syst., 37:6 (2017), 3353–3386  crossref  mathscinet  zmath  isi  scopus
  4. Peng L., Feng Zh., Liu Ch., “Quadratic Perturbations of a Quadratic Reversible Lotka-Volterra System With Two Centers”, Discret. Contin. Dyn. Syst., 34:11 (2014), 4807–4826  crossref  mathscinet  zmath  isi  elib  scopus