Affiliations: Sofia University “St. Kliment Ohridski”, Faculty of Mathematics and Informatics, 5, James Bourchier Blvd., 1164 Sofia, Bulgaria, skordev@fmi.uni-sofia.bg, http://www.fmi.uni-sofia.bg/fmi/logic/skordev/
Abstract: A computability notion for real functions which is in Grzegorczyk’s spirit is shown to be equivalent to one in the spirit of Tent and Ziegler under some general assumptions.