%0 Journal Article %A Balcázar, José L. %A Gabarró, Joaquim %T Nonuniform complexity classes specified by lower and upper bounds %J RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications %D 1989 %P 177-194 %V 23 %N 2 %I EDP-Sciences %U http://www.numdam.org/item/ITA_1989__23_2_177_0/ %G en %F ITA_1989__23_2_177_0