Vielberth, Johann <br/><br/>
The Kod system.  Currect stage of development 
Johann Vielberth 
 - Institute for Development  Regensburd  2008 
 - 125p. 
<br/><br/><label>ISBN: </label>9783981253214 
<br/><br/><label>Dewey Class. No.: </label>410.285574 V533