2000

Eklund, P.; Groh, B.; Stumme, G. & Wille, R. (2000), Contextual-Logic Extension of TOSCANA., in B. Ganter & G. W. Mineau, ed., 'Conceptual Structures: Logical, Linguistic, and Computational' , Springer, Heidelberg , pp. 453-467 .

1999

Prediger, S. & Wille, R. (1999), The Lattice of Concept Graphs of a Relationally Scaled Context, in William M. Tepfenhart & Walling R. Cyre, ed., 'ICCS' , Springer, , pp. 401-414 .

1997

Wille, R. (1997), Conceptual Graphs and Formal Concept Analysis, in D. Lukose; H. Delugach; M. Keeler; L. Searle & J. F. Sowa, ed., 'Conceptual Structures: Fulfilling Peirce's Dream' , Springer, Heidelberg , pp. 290--303 .

1995

Stumme, G. & Wille, R. (1995), A Geometrical Heuristic for Drawing Concept Lattices, in R. Tamassia & I.G. Tollis, ed., 'Graph Drawing' , Springer, Heidelberg , pp. 452-459 .