@article{ITA_1989__23_2_177_0,
     author = {Balc\'azar, Jos\'e L. and Gabarr\'o, Joaquim},
     title = {Nonuniform complexity classes specified by lower and upper bounds},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {177--194},
     publisher = {EDP-Sciences},
     volume = {23},
     number = {2},
     year = {1989},
     mrnumber = {1001725},
     zbl = {0681.68054},
     language = {en},
     url = {http://www.numdam.org/item/ITA_1989__23_2_177_0/}
}