TY  - BOOK
AU  - Summer School on Mathematical systems theory and economics, Varenna, Italy, June 1-12, 1967
AU  - 
TI  - Mathematical systems, theory and economics; proceedings of the international summer school
U1  - 330.0151993 
PY  - 1969///
CY  - Berlin
PB  - Springer-Verlag
ER  -