@incollection{Wiesner, author = {Wiesner, Knut}, title = {Darstellung und Bedeutung von Dienstleistungen}, series = {Dienstleistungsmanagement f{\"u}r wirtschaftsberatende Berufe}, booktitle = {Dienstleistungsmanagement f{\"u}r wirtschaftsberatende Berufe}, editor = {Pepels, Werner and Ebel, Bernd}, publisher = {Neue Wirtschaftsbriefe}, address = {Herne}, isbn = {978-3-482-53752-3 , 978-3-482-61261-9}, language = {de} } @article{Wiesner, author = {Wiesner, Knut}, title = {Faires Management und Marketing schaffen Wettbewerbsvorteile}, series = {TourHP}, volume = {6}, journal = {TourHP}, number = {09}, address = {Berlin}, pages = {16 -- ff.}, language = {de} }