@inbook{Gehler2015, author = {Gehler, Michael}, editor = {Gehler, Michael and Luif, Paul and Vyslonzil, Elisabeth}, year = {2015}, pages = {25-78}, title = {Deutschland als neue Zentralmacht Europas und seine Außenpolitik 1989-2009, in:}, volume = {20}, publisher = {Olms, Weidmann}, address = {Hildesheim/Zürich/New York}, journal = {Die Dimension Mitteleuropa in der Europäischen Union} }