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Oliveira Regilene; Schlomiuk Dana; Travaglini Ana Maria: Geometry and integrability of quadratic systems with invariant hyperbolas. (2021)
Oliveira Regilene; Schlomiuk Dana; Travaglini Ana Maria; Valls Claudia: Geometry, integrability and bifurcation diagrams of a family of quadratic differential systems as application of the Darboux theory of integrability. (2021)
Mencinger Matej; Ferčec Brigita; Fernandes Wilker; Oliveira Regilene: Linearizability problem of persistent centers. (2018)