@book{KussWildnerKreis, author = {Kuß, Alfred and Wildner, Raimund and Kreis, Henning}, title = {Marktforschung}, edition = {5. Auflage}, publisher = {Springer Gabler}, address = {Wiesbaden}, isbn = {978-3-658-01863-4}, pages = {297}, language = {de} }