@article{00695988, title = {Feigenbaum numbers of certain flat-top families.}, journal = {Experimental Mathematics}, volume = {3}, year = {1994}, pages = {51-57}, doi = {10.1080/10586458.1994.10504576}, zbl = {0807.58035}, language = {en}, url = {http://dml.mathdoc.fr/item/00695988} }
Thunberg, Hans. Feigenbaum numbers of certain flat-top families.. Experimental Mathematics, Tome 3 (1994) pp. 51-57. doi : 10.1080/10586458.1994.10504576. http://gdmltest.u-ga.fr/item/00695988/