author = { Johnston, Margaret E. AND Viken, Arvid },

title = { Polar Tourism Implications and Management },

publisher = {Elsevier BV},

isbn = {0160-7383},

keywords = { Tourism, Leisure and Hospitality Management , Development },

year = {1997},

url = { http://slubdd.de/katalog?TN_libero_mab2 }