@article{05164030, title = {Periodic solutions of dissipative systems revisited.}, journal = {Fixed Point Theory and Applications [electronic only]}, volume = {2006}, year = {2006}, doi = {10.1155/FPTA/2006/65195}, zbl = {1130.34318}, language = {en}, url = {http://dml.mathdoc.fr/item/05164030} }
Andres, Jan; Górniewicz, Lech. Periodic solutions of dissipative systems revisited.. Fixed Point Theory and Applications [electronic only], Tome 2006 (2006) . doi : 10.1155/FPTA/2006/65195. http://gdmltest.u-ga.fr/item/05164030/