Jaume Baixeries Laszlo Szathmary Petko Valtchev Robert Godin Yet a Faster Algorithm for Building the Hasse Diagram of a Concept Lattice. 162-177 2009 ICFCA http://dx.doi.org/10.1007/978-3-642-01815-2_13 conf/icfca/2009 db/conf/icfca/icfca2009.html#BaixeriesSVG09