R. Jäschke, and S. Rudolph. Contributions to the 11th International Conference on Formal Concept Analysis, page 19--34. Technische Universität Dresden, (May 2013)
G. Krempl, D. Bodnar, and A. Hrubos. Advances in Intelligent Data Analysis XIV - 14th Int. Symposium, IDA 2015, St. Etienne, France, volume 9385 of Lecture Notes in Computer Science, page XXII--XXIII. Springer, (2015)