TY  - BOOK
AU  - JAFFE Adam B
AU  -  TRAJTENBERG Manuel
TI  - Patents, citations and innovations:  A window on the knowledge economy   
SN  - 9780262100953
U1  - X0gF, P2 
PY  - 2002///
CY  - Cambridge
PB  - MIT Press         
KW  - Economics
ER  -