@inproceedings{LehmannWille95, address = {Berlin--Heidelberg--New~York}, author = {Lehmann, Fritz and Wille, Rudolf}, booktitle = {Conceptual structures: applications, implementation and theory}, editor = {Ellis, G. and Levinson, R. and Rich, W. and Sowa, J. F.}, interhash = {fa3e423ee0c5a9dadc3211c3f8a5e4a6}, intrahash = {341d19e74e2cce2ea9d5a94df8b48873}, number = 954, pages = {32-43}, publisher = {Springer--Verlag}, series = {Lecture Notes in Artificial Intelligence}, title = {A triadic approach to formal concept analysis}, year = 1995 }