Lenk, John D. Simplified design of voltage-frequency converters - Boston Newnes 1997 - 210 p ISBN: 9780750696548 Subjects--Topical Terms: Electronic Engineering LC Class. No.: 621.3815322 LEN 1997 Dewey Class. No.: 621.3815322 LEN 1997 National Library of Medicine Call No.: 621.3815322 LEN 1997