Conference record of the <1990=one thousand nine hundred ninety> IEEE international symposium on electrical insulation held at L'Hotel, Toronto, Canada from <3=three> to <6=six>th June <1990=one thousand nine hundred ninety> 

 -  IEEE, New York, 1990 
<br/><br/><label>Universal Decimal Class. No.: </label>621.315.6  / INS.90