TY - JOUR DO - 10.5169/seals-42405 DB - https://www.e-periodica.ch T1 - Extension theorems for integral representations of solutions of a functional eqaution AU - Cannizzo, A. JF - Elemente der Mathematik PB - Birkhäuser Y1 - 1990 VL - 45 IS - 1 SP - 9 SN - 0013-6018 ER -