Quality digest 

 - Red Bluff, California :   QCI International,  1997 
 - 1997: 17(1-5,7-10) 1998: 18(6,12) 1999: 19(3,7-12) 2000: 20(1-2,8-12) 2001: 21(2-6,8-12) 2002: 22(4-6,8) 
<br/><br/><label>ISSN: </label>1049-8699 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Informática
<br/><br/><label>Dewey Class. No.: </label>PP 004 Q15