@book{31526,
	author = {Deketh, Jan.},
	title = {Fundamentals of radio-valve technique :},
	publisher = {N.V. Philips' Gloeilampenfabrieken, Technical and Scientific Literature Dept.,},
	year = {1949.},
	series = {Philips' technical library. Series of books on electronic valves, book 1},
	address = {Eindhoven :}
}