Media type: E-Article Title: On the uniqueness of algebraic limit cycles for quadratic polynomial differential systems with two pairs of equilibrium points at infinity Contributor: Llibre, Jaume; Valls, Claudia imprint: Springer Science and Business Media LLC, 2017 Published in: Geometriae Dedicata Language: English DOI: 10.1007/s10711-017-0244-y ISSN: 0046-5755; 1572-9168 Keywords: Geometry and Topology Origination: Footnote: