%0 Journal Article %A Trier, U. %T On the average number of registers needed to evaluate a special class of backtrack trees %J RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications %D 1993 %P 541-554 %V 27 %N 6 %I EDP-Sciences %U http://www.numdam.org/item/ITA_1993__27_6_541_0/ %G en %F ITA_1993__27_6_541_0