@incollection{Groetschel2007, author = {Martin Gr{\"o}tschel}, title = {Schnelle Rundreisen}, booktitle = {Kombinatorische Optimierung erleben - In Studium und Unterricht}, editor = {Stephan Hußmann and Brigitte Lutz-Westphal}, pages = {95 -- 128}, url = {http://www.viewegteubner.de/index.php;do=show/site=v/book_id=6158}, year = {2007}, }