Bollen, Math H. J. Understanding power quality problems voltage sags and interruptions - Hoboken Wiley-Interscience 2000 - 543 p ISBN: 9780780347137 Subjects--Topical Terms: Electronic Engineering LC Class. No.: 621.319 BOL 2000 Dewey Class. No.: 621.319 BOL 2000 National Library of Medicine Call No.: 621.319 BOL 2000