Electrical variable-speed drives 

 - London :  IEEE,  1979 
 - 2 v. :  il. 
 - IEE. Conference Publication  ; no. 79 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>ACCIONAMIENTO ELECTRICO
<br/><br/><label>Dewey Class. No.: </label>621.313  / I61