%% -*-BibTeX-*- @InCollection{Groetschel2015b, author = "Martin Gr{\"o}tschel", editor = "Stephan Hu{\ss}mann and Brigitte Lutz-Westphal", booktitle = "Kombinatorische Optimierung erleben -- In Studium und Unterricht", title = "Das Problem mit der Komplexit{\"a}t: {P} = {NP}?", chapter = "9", publisher = "Springer Spektrum", address = "Wiesbaden", pages = "265--274", year = "2007", ISBN = "978-3-658-06992-6", URL = "http://link.springer.com/chapter/10.1007/978-3-658-06993-3_9", classmath = "00A35 97C70", language = "German", }