Tom J. van Weert, Mike Kendall: Lifelong Learning in the Digital Age: Sustainable for all in a changing world, IFIP Technical Committee 3 (Education) Lifelong Learning Working Track in the IFIP conference, E-Training Practices for Professional Organisations, Pori, Finland, 7-11 July 2003. IFIP Conference Proceedings 137, Kluwer/Springer 2004, ISBN 1-4020-7842-0