Stahl <br/><br/>
Group Cognition: Computer Support for Building Collaborative Knowledge 

 -  MIT Press  2006 
<br/><br/> fulltext 
<br/><br/> Monograph 
<br/><br/><label>ISBN: </label>9780262257022 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computing and Processing