1. Piano string excitation III: General solution for a soft narrow hammer;Hall;J. Acoust. Soc. Amer.,1987
2. Transient response to step and pulse functions;Ayre,1988
3. Schwingungsformen und Klangbewertung bei Xylophonen und Trommeln;Bork,1988
4. Mechanical Vibration and Shock Measurements;Broch,1980
5. Piano string excitation V: Spectra for real hammers and strings;Hall;J. Acoust. Soc. Amer.,1988