TY  - BOOK
AU  - Workshop on "Generalized Concavity Fractional Programming and Economic Applications", University of Pisa, Italy, May 30-June 1, 1988
AU  - Comobini, A.
TI  - Generalized convexity and fractional programming with economic applications; proceedings of the international workshop
U1  - 658.4033 
PY  - 1990///
CY  - Berlin
PB  - Springer-Verlag
ER  -