@book{12237,
	author = {Orton, J. W. and Paxman, D. H.},
	title = {The solid state maser,},
	publisher = {Pergamon Press},
	year = {[1970]},
	series = {The Commonwealth and international library. Selected readings in physics},
	address = {Oxford,},
	edition = {[1st ed.]}
}