TY  - BOOK
AU  - KAUFER Enich
TI  - Economics of the patent system
T2  - Fundamentals of Pure and Applied Economics; v.30
SN  - 041526930x
U1  - Z:26730x.N89, M9 
PY  - 1989///
CY  - Chur
PB  - Harwood Academic Publishers        
KW  - Economics
ER  -