Klapper, Jacob Phase-locked and frequency-feedback systems principles and techniques Jacob Klapper and John T. Frankle - New York Academic Press 1972 - xx+393p. appendix; biblio; graphs; index - Electrical Science Series . ISBN: 0-12-410850-4 Subjects--Topical Terms: Frequency-feedback Systems Universal Decimal Class. No.: 621.372.632 / KLA