1. M. Davis, J. Skupien (Eds.): Body Movement and Nonverbal Communication — An Annotated Bibliography, 1971–1981, Indiana University Press, Bloomington, 1982
2. R. O. Duda, P. E. Hart: Pattern classification and scene analysis. Wiley-Interscience, New York, 1973
3. A. D. N. Edwards: Progress in Sign Language Recognition, this volume
4. K. Fukunaga: Introduction to statistical pattern recognition. 2nd ed., Academic Press, London, 1990
5. GW ’96: Progress in gestural interaction: Proceedings of Gesture Workshop ’96, Philip A. Harling and Alistair D. N. Edwards (eds.), Springer, London, 1997