Moser, Petra <br/><br/>
Patent citations and the size of the inventive step :  Evidence from hybrid corn / 
Petra Moser, Joerg Ohmstedt and Paul W. Rhode 
 - Cambridge  NBER  2015 
 - 49p 
 - NBER Working Paper ;  21443 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>NBERWP 21443<br/>E15249.pdf