%% -*-BibTeX-*- @InCollection{GroetschelBBAW2008c, author = "Martin Gr{\"o}tschel", editor = "Berlin-Brandenburgische Akademie der Wissenschaften", booktitle = "Berichte und Abhandlungen", title = "Ohne x is nix", volume = "14", publisher = "Akademie-Verlag", address = "Berlin", pages = "195--219", year = "2008", language = "German", }