@inproceedings{JaakkolaFeyerScheweetal., author = {Jaakkola, Hannu and Feyer, Thomas and Schewe, Klaus-Dieter and Thalheim, Bernhard}, title = {Intensionality in Concept Theory}, series = {Proceedings of the 11th European-Japanese Conference on Information Modelling and Knowledge Bases, May 29 - June 1, 2001, Maribor, Slovenia}, booktitle = {Proceedings of the 11th European-Japanese Conference on Information Modelling and Knowledge Bases, May 29 - June 1, 2001, Maribor, Slovenia}, address = {Maribor}, isbn = {86-435-0404-1}, pages = {412 -- 414}, language = {en} } @inproceedings{JaakkolaThalheim, author = {Jaakkola, Hannu and Thalheim, Bernhard}, title = {Visual SQL? High-Quality ER-Based Query Treatment}, language = {en} }