@article{GDZPPN002035685, title = {The Feigenbaum functional equation and periodic points. (Short Communication).}, journal = {Aequationes mathematicae}, volume = {30}, year = {1986}, pages = {118-118}, zbl = {0593.39001}, url = {http://dml.mathdoc.fr/item/GDZPPN002035685} }
Fischer, P. The Feigenbaum functional equation and periodic points. (Short Communication).. Aequationes mathematicae, Tome 30 (1986) p. 118. http://gdmltest.u-ga.fr/item/GDZPPN002035685/