TY  - BOOK
AU  - Beckmann, M.
AU  - Kunzi, H.P.
TI  - LECTURE NOTES IN ECONOMICS AND MATHEMATICAL SYSTEMS
SN  - 3 540 06621 7
U1  - 001.424 
PY  - 1974///
CY  - 
PB  - Springer-Verlag
ER  -