Lanjouw, Jean O. <br/><br/>
The quality of ideas : measuring innovation with multiple indicators 

 - Cambridge, Mass :  National Bureau of Economic Research,  1999 
 - 36 
<br/><br/><label>Subjects--Topical Terms: </label><br/>TECHNOLOGICAL INNOVATIONS--UNITED STATES<br/>PATENTS--UNITED STATES<br/>RESEARCH, INDUSTRIAL--UNITED STATES
<br/><br/><label>LC Class. No.: </label>HD45  / L364Q