TY  - BOOK
AU  - Aczel, J.  
AU  - Dhombres,  J.
TI  - Functional equations in several variables: with applications to mathematics, information theory and to the natural and social sciences 
SN  - 0521352762
U1  - 515.84 
PY  - 1989///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Functional equations
KW  - Functions of several real variables
ER  -