Quadratic systems with invariant straight lines of total multiplicity two having Darboux invariants
Jaume Llibre Regilene Delazari dos Santos Oliveira
Communications in Contemporary Mathematics Singapore : World Scientific v. 17, n. 3, p. 1450018-1-1450018-17, 2015Singapore 2015
Localização: ICMC - Inst. Ciên. Mat. Computação (PROD-2472179 )(Acessar)