Proceedings (delugach01conceptual)
Delugach, H. & Stumme, G. (ed.)
Conceptual Structures -- Broadening the Base. Proc. 9th International Conference on Conceptual Structures
Springer, 2001, 2120

Inproceedings (hereth01reverse)
Hereth, J. & Stumme, G.
Delugach, H. & Stumme, G. (ed.)
Reverse Pivoting in Conceptual Information Systems.
Springer, 2001, 2120, 202-215

Inproceedings (stumme01conceptualclustering)
Stumme, G.; Taouil, R.; Bastide, Y. & Lakhal, L.
Klinkenberg, R.; Rüping, S.; Fick, A.; Henze, N.; Herzog, C.; Molitor, R. & Schröder, O. (ed.)
Conceptual Clustering with Iceberg Concept Lattices
2001