1. Algorithmic Bioinformatics, Bonn-Aachen International Center for IT, Bonn, Germany
2. DIMNP UMR CNRS 5235, University of Montpellier, Montpellier, France
3. Institut für Informatik II, University of Bonn, Bonn, Germany
4. UCB Biosciences GmbH, Monheim, Germany