http://eos.kub.nl:2080/w3thesis/Readthis/eberts1989.html (Einblicke ins Internet, 10/1995)Author: Eberts, R. E. and Eberts, C. G.
Title: Four approaches to human-computer interaction
In: Hancock, P.A. and Chignell, M. H. (eds) - Intelligent interfaces: Theory, research and design
Published by: Elsevier Science Publishers B.V. (North-Holland), 1989
ISBN: 0-444-87313-9
Sjoerd Michels, Tilburg, The Netherlands