@book{4877,
	author = {Pearsons, Karl S. and Horonjeff, Richard D., and  },
	title = {Measurement of speech levels in thepresence of time varying background noise,},
	publisher = { },
	year = {[1982]},
	series = {NASA contractor report, NASA CR-3547},
	address = { },
	note = { }
}