%0 Journal Article %A Dyer, Micheal N. %T On the essential height of homotopy trees with finite fundamental group %J Compositio Mathematica %D 1978 %P 209-224 %V 36 %N 2 %I Sijthoff et Noordhoff International Publishers %U http://www.numdam.org/item/CM_1978__36_2_209_0/ %G en %F CM_1978__36_2_209_0