@phdthesis{Frieg, type = {Bachelor Thesis}, author = {Katharina Frieg}, title = {Selection and application of control instruments in the sustainable tourism development. An examination of the Golden Circle, Iceland}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:916-opus4-3236}, pages = {100}, abstract = {kein Abstract vorhanden}, language = {de} }