%% -*-BibTeX-*- @Article{GroetschelKrumkeRambau2006, author = "Martin Gr{\"o}tschel and Sven O. Krumke and J{\"o}rg Rambau", title = "Wo bleibt der Aufzug?", journal = "OR News", volume = "Sonderausgabe", pages = "70--72", year = "2006", language = "German", seealso = "GroetschelKrumkeRambau1999", }