%0 Journal Article %A Filippo Disanto %A Michael Fuchs %T Distribution of external branch lengths in Yule histories %J The electronic journal of combinatorics %D 2023 %V 30 %N 3 %U http://geodesic.mathdoc.fr/articles/10.37236/11438/ %R 10.37236/11438 %F 10_37236_11438