author = { Torres-Delgado, Anna AND Saarinen, Jarkko },

title = { Using indicators to assess sustainable tourism development: a review },

publisher = {Informa UK Limited},

isbn = {1461-6688},

isbn = {1470-1340},

year = {2014},

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