?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Mladenova&rft.au=Mladenova%2C+Radina&rft.aufirst=Radina&rft.degree=Master&rft.date=2014&rft.title=Sustainable+Tourism+Development+based+on+Integrated+Coastal+Zone+Management+at+the+Bulgarian+Black+Sea%3A+A+Case+Study+of+Varna