Qin, Jian <br/><br/>
Levels and types of collaboration in interdisciplinary research in the sciences. 

 -  University of Illinois at Urbana-Champaign,  1996 
 - 146 
<br/><br/>Doctor of Philosophy 
<br/><br/><label>Subjects--Index Terms: </label>Bibliometrķa Colegios Invisibles