1. Microindentation Hardness Testing, Butterworths, London 1956
2. Mikrohärteprüfung, Berliner Union Verlag, Stuttgart 1965.
3. Hardness of Metals, Clarendon Press, Oxford 1951.
4. The correlation of indentation experiments
5. and , X. Internat. Conf. on Glass, Kyoto 1974 (p. 11).