Published in: Christian-Albrechts-Universität zu Kiel: Bericht / Institut für Informatik und Praktische Mathematik ; 9611

Published in: International series of numerical mathematics ; 44

Published in: Informatik-Fachberichte ; 200

Published in: Lecture notes in computer science ; 6484

Published in: Discrete mathematics and its applications- Discrete Mathematics and Its Applications

Published in: Lecture notes in computer science ; 6484