120 B 132.820 Telearbeit Teleteachinq eightynine. -Teleteaching '98. Distance learning, training and educaticn. Proceedings of the 15 IFIP World Computer Congress, 31 Aug.-4 Sept.1998, Vienna••• and Budapest. Ed. by C~rdon ~avies. Pt. 1-3. _ (Wien): Osterr. Com9uter Ges. 1998. BO 1. Proceedings. 546 S. 2. Proceedings. S. 549-1096. 3. Short Papers. 133 S. (Schriftenreihe d. Osterr. Com9uter Ges. 120.) ISBN 3-85403-120-3