TY  - BOOK
AU  - Von Hippel, Eric
TI  - Free innovation
SN  - 9780262035217 
U1  - 338.064 VON  
PY  - 2016///
CY  - Cambridge, MA
PB  - MIT Press
KW  - Technological innovations- economic aspects; Inventors; Innovations 
N1  - Includes bibliographical references and index 
ER  -