Search for: [Subject and Keywords = camping grounds] OR [Subject and Keywords = campsites] OR [Subject and Keywords = Bulgaria] OR [Subject and Keywords = trends] OR [Subject and Keywords = tourism] OR [Subject and Keywords = time series] OR [Subject and Keywords = pole namiotowe] OR [Subject and Keywords = kemping] OR [Subject and Keywords = Bułgaria] OR [Subject and Keywords = trendy] OR [Subject and Keywords = turyzm] OR [Subject and Keywords = serie czasowe] OR [Title = Camping Tourism in Bulgaria\: A time\-series analysis of tourist demand] OR [Creator = Naydenov, Alexander] OR [Creator = Naumov, Nikola] OR [Creator = Varadzhakova, Desislava]