Full Citation:
Nöllenburg, Martin. An Improved Algorithm for the Metro-Line Crossing Minimization Problem. Graph Drawing (GD'09) (Eppstein, David and Gansner, Emden R.), volume 5849 of LNCS, pages 381-392, 2010, Springer Berlin Heidelberg.
Martin Nöllenburg is a Professor at the Algorithms and Complexity Group.