TY  - BOOK
AU  - Kuczma, Merek.
AU  - Choczewski, Bodgan.
AU  - Ger, Roman.
TI  - Iterative functional equations
T2  - Encyclopedia of Mathematics and its Applications
SN  - 0 521 35561 3
U1  - 515.25 
PY  - 1990///
CY  - Cambrdige
PB  - Cambridge Univerwity Press
ER  -