TY  - BOOK
AU  - Ullberg,Eskil
TI  - Trade in ideas: performance and behavioral properties of markets in patents 
T2  - Innovation, technology, and knowledge management
SN  - 9781461412717
PY  - 2012///
CY  - New York
PB  - Springer
KW  - Patents
KW  - Economic aspects
N1  - Includes bibliographical references (p. 189-192) and indexes
ER  -