@book{31773,
	author = {Sentz, Robert E. and Bartkowiak, Robert A.,},
	title = {Feedback amplifiers and oscillators /},
	publisher = {Holt, Rinehart and Winston},
	year = {c1968.},
	series = {Holt, Rinehart and Winston series in electronics technology},
	address = {New York,}
}