1996

G.R.S. Weir, G. Lepouras, U. Sakellaridis
People and Computers XI, M.A. Sasse, R.J. Cunnigham, and R.L. Winder (Eds), pp. 129-138, proceedings of Human Computer Interaction '96, Springer, ISBN 3-540-76069-5.

C. Vassilakis, P. Georgiadis, A. Sotiropoulou
in Proceedings of DEXA 96 workshop, Zurich, September 1996.

M. Spiliopoulou, M. Hatzopoulos and C. Vassilakis
in Journal Computers and Artificial Intelligence, Vol. 14, 1996, No. 1, pp. 341-368