Universität zu Köln

Baumann, Frank and Buchheim, Christoph ORCID: 0000-0001-9974-404X (2009). Compact and Extended Formulations for Range Assignment Problems. Working Paper.

Baumann, Frank, Buchheim, Christoph ORCID: 0000-0001-9974-404X and Liers, Frauke (2010). Exact Bipartite Crossing Minimization under Tree Constraints. In: 9th International Symposium on Experimental Algorithms SEA 2010, pp. 118-128. Springer Verlag.