P. Cimiano, A. Hotho, G. Stumme, and J. Tane. Concept Lattices, volume 2961 of LNAI, page 189-207. Heidelberg, Second International Conference on Formal Concept Analysis, ICFCA 2004, Springer, (2004)
P. Cimiano, S. Staab, and J. Tane. Proceedings of the GI Workshop "Lehren - Lernen - Wissen - Adaptivität" (LLWA), Fachgruppe Maschinelles Lernen, Wissenentdeckung, Data Mining, Karlsruhe, Germany, page 72-79. (2003)
K. Wolff. Computing Anticipatory Systems. CASYS'99 - Third International Conference, Liège, Belgium, 1999, 517, page 83-97. American Institute of Physics, Conference Proceedings, (2000)