@article{EXMA_1994__3_1_228822, author = {Thunberg, Hans}, title = {Feigenbaum numbers of certain flat-top families.}, journal = {Experimental mathematics}, pages = {51--57}, publisher = {mathdoc}, volume = {3}, number = {1}, year = {1994}, zbl = {0807.58035}, language = {en}, url = {http://geodesic.mathdoc.fr/item/EXMA_1994__3_1_228822/} }