Chrisoulis, C., Panagopoulou, G., Sirmakessis, S., Tsakalidis, A., & Tzimas, J. (1995), ‘The PELICAN-System’, in the Workshop Proceedings of the 6th International Conference and Workshop on Database and Expert Systems Applications (DEXA ‘95), September 4-8, 1995, London, United Kingdom, Springer-Verlag Berlin Heidelberg, LNCS 978, ISBN 3-540-60303-4, pp. 461-465.