Sébastien Ferré Sebastian Rudolph Formal Concept Analysis, 7th International Conference, ICFCA 2009, Darmstadt, Germany, May 21-24, 2009, Proceedings 5548 2009 http://dx.doi.org/10.1007/978-3-642-01815-2 978-3-642-01814-5 ICFCA Lecture Notes in Computer Science Springer db/conf/icfca/icfca2009.html