Qualitative theory of ordinary differential equations: integrability, periodic orb...
Integrability of two-dimensional polynomial differential systems
Global analysis of Quadratic Planar Polynomial Vector Fields with Invariant Algebr...
Investigation of planar quadratic differential systems of codimension two
Uniform isochronous centers in planar polynomial differential systems of degree 5
Global dynamics and integrability of quadratic polynomial differential systems in ...
Integrability and global dynamics of quadratic vector fields defined on R3 with Qu...