@conference { berdahlandsmithcontrol06,
	title = {Active Damping of a Vibrating String},
	booktitle = {Proc.~6th International Symposium on Active Noise and Vibration Control},
	year = {2006},
	month = {Sept.~18{\textendash}20},
	address = {Adelaide, Australia},
	author = {Edgar Berdahl and Julius O. Smith}
}
