author = { Tobias, Gisela AND Tobias, Werner Vista Point Verlag GmbH },

title = { Portugal },

publisher = {Vista Point Verlag GmbH},

isbn = {3957332869},

isbn = {9783957332868},

keywords = { Führer , Portugal },

year = {[2016]},

booktitle = {Vista Point weltweit},

booktitle = {Reiseführer},

address = { Potsdam },

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