%0 Journal Article %A Courcelle, Bruno %A Gallier, Jean H. %T Decidable subcases of the equivalence problem for recursive program schemes %J RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications %D 1987 %P 245-286 %V 21 %N 3 %I EDP-Sciences %U http://www.numdam.org/item/ITA_1987__21_3_245_0/ %G en %F ITA_1987__21_3_245_0