@book{KampmannWalter2010, author = {Kampmann, Ricarda and Walter, Johann}, title = {Makro{\"o}konomie. Wachstum, Besch{\"a}ftigung, Außenwirtschaft}, publisher = {Oldenbourg}, address = {M{\"u}nchen}, isbn = {978-3-486-59158-3}, publisher = {Westf{\"a}lische Hochschule Gelsenkirchen Bocholt Recklinghausen}, pages = {307}, year = {2010}, subject = {Makro{\"o}konomie}, language = {de} } @book{KampmannWalter2010, author = {Kampmann, Ricarda and Walter, Johann}, title = {Mikro{\"o}konomie. Markt, Wirtschaftsordnung, Wettbewerb}, publisher = {Oldenbourg}, address = {M{\"u}nchen}, isbn = {978-3-486-59157-6}, publisher = {Westf{\"a}lische Hochschule Gelsenkirchen Bocholt Recklinghausen}, pages = {251}, year = {2010}, subject = {Mikro{\"o}konomie}, language = {de} }