%0 Journal Article %A Thunberg, Hans %T Feigenbaum numbers of certain flat-top families. %J Experimental mathematics %D 1994 %P 51-57 %V 3 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/EXMA_1994__3_1_228822/ %G en %F EXMA_1994__3_1_228822