| Publication | Date of Publication | Type |
|---|
| Isochronous centers of cubic reversible systems | 2012-01-02 | Paper |
| Local integrability for nilpotent critical point | 2012-01-02 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3596594 | 2009-01-28 | Paper |
| Limit cycles in Kukles systems of arbitrary degree with invariant ellipse | 2007-06-06 | Paper |
| Existence of limit cycles for real quadratic differential systems with an invariant cubic | 2007-02-26 | Paper |
| Polynomial first integrals of quadratic vector fields | 2007-01-09 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3412692 | 2007-01-02 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5394860 | 2006-11-01 | Paper |
| Invariant algebraic curves for the cubic Liénard system with linear damping | 2006-08-17 | Paper |
| Non-nested configuration of algebraic limit cycles in quadratic systems | 2006-07-20 | Paper |
| ON INTEGRABILITY OF DIFFERENTIAL EQUATIONS DEFINED BY THE SUM OF HOMOGENEOUS VECTOR FIELDS WITH DEGENERATE INFINITY | 2006-06-23 | Paper |
| Lie symmetries of quasihomogeneous polynomial planar vector fields and certain perturbations | 2006-01-09 | Paper |
| Necessary conditions for the existence of invariant algebraic curves for planar polynomial systems | 2005-08-22 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4674228 | 2005-05-09 | Paper |
| Resolution of the Poincaré problem and nonexistence of algebraic limit cycles in family (I) of Chinese classification | 2005-04-18 | Paper |
| Coexistence of limit cycles and invariant algebraic curves for a Kukles system | 2005-02-22 | Paper |
| On a Result of Darboux | 2004-11-18 | Paper |
| Algebraic limit cycles of degree 4 for quadratic systems | 2004-10-01 | Paper |
| A family of non-Darboux-integrable quadratic polynomial differential systems with algebraic solutions of arbitrarily high degree | 2004-06-11 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4483719 | 2004-02-09 | Paper |
| Local analytic integrability for nilpotent centers | 2003-12-09 | Paper |
| Darboux integrability and the inverse integrating factor. | 2003-11-16 | Paper |
| Invariant algebraic curves linear in one variable for planar real quadratic systems. | 2003-09-09 | Paper |
| An exact solution for the fluctuations of an FRW cosmology with \(n\) scalar fields, for an arbitrary potential | 2003-08-20 | Paper |
| Some criteria for the existence of limit cycles for quadratic vector fields. | 2003-07-30 | Paper |
| Isochronicity into a family of time-reversible cubic vector fields | 2003-01-28 | Paper |
| Uniqueness of algebraic limit cycles for quadratic systems | 2002-10-15 | Paper |
| Integrable systems via polynomial inverse integrating factors | 2002-09-18 | Paper |
| Analytic integrability of a class of nilpotent cubic systems | 2002-09-03 | Paper |
| On Lie's symmetries for planar polynomial differential systems | 2002-06-23 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4533199 | 2002-06-09 | Paper |
| Integrability of cubic systems with degenerate infinity | 2002-05-23 | Paper |
| A class of reversible cubic systems with an isochronous center | 2002-03-22 | Paper |
| Invariant algebraic curves and rational first integrals for planar polynomial vector fields | 2002-02-22 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4522499 | 2001-10-21 | Paper |
| Isochronous centers of cubic systems with degenerate infinity | 2001-09-11 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4524909 | 2001-07-29 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2717966 | 2001-07-26 | Paper |
| Integrability and Explicit Solutions in Some Bianchi Cosmological Dynamical Systems | 2001-04-17 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4524884 | 2001-01-15 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4702496 | 2000-10-17 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4702497 | 2000-10-17 | Paper |
| On the integrability of two-dimensional flows | 2000-07-26 | Paper |
| An improvement to Darboux integrability theorem for systems having a center | 2000-04-09 | Paper |
| Isochronous centers of a linear center perturbed by fifth degree homogeneous polynomials | 2000-01-01 | Paper |
| Isochronous centers of a linear center perturbed by fourth degree homogeneous polynomial | 1999-09-23 | Paper |
| On a new type of bifurcation of limit cycles for a planar cubic system | 1999-08-05 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4394769 | 1999-01-19 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4394548 | 1998-12-06 | Paper |
| Integrability of a linear center perturbed by a fifth degree homogeneous polynomial | 1998-10-25 | Paper |
| Algebraic solutions for polynomial systems with emphasis in the quadratic case | 1998-09-27 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4394631 | 1998-08-18 | Paper |
| Polynomial first integrals of systems in the plane with center type linear part | 1998-07-14 | Paper |
| The null divergence factor | 1998-01-06 | Paper |
| Integrability of centers perturbed by quasi-homogeneous polynomials | 1997-10-30 | Paper |
| Integrability of a linear center perturbed by a fourth degree homogeneous polynomial | 1996-12-08 | Paper |
| A class of integrable polynomial vector fields | 1996-01-28 | Paper |
| Integrable systems in the plane with center type linear part | 1994-10-26 | Paper |
