00334nam a2200121Ia 4500082002000000100001400020245005700034260003500091300001500126490006100141500000500202700000500207  a515.1bAc189.OA  aAczel, J.  aOn applications and theory of functional equationsb  aNew YorkbAcademic Pressc1969  a64p. Bibl.  aElemente der Mathematik vom hoheren Standpunkkausv v. 5  a  a