Keravnou, E. T. <br/><br/>
Competent expert systems :  a case study in fault diagnosis / 
E. T. Keravnou, L. Johnson. 
 - New York :  McGraw-Hill Book,  1986. 
 - 320 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0070341680 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Expert systems (Computer science).<br/>Automatic checkout equipment.