Wirtz, Bernd W. <br/><br/>
Digital business models :   concepts, models, and the alphabet case study/ 
Bernd W. Wirtz.  
 - Switzerland:  Springer,  2019. 
 - 247 pages. 
 - Progress in IS .
<br/><br/><label>ISBN: </label>9783030130046 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business;<br/>Commerce
<br/><br/><label>Dewey Class. No.: </label>380   / WIR