@article{ITA_1979__13_1_49_0, author = {Fachini, E. and Maggiolo-Schettini, A.}, title = {A hierarchy of primitive recursive sequence functions}, journal = {RAIRO. Informatique th\'eorique}, pages = {49--67}, publisher = {EDP-Sciences}, volume = {13}, number = {1}, year = {1979}, zbl = {0402.03041}, mrnumber = {525457}, language = {en}, url = {http://www.numdam.org/item/ITA_1979__13_1_49_0/} }