Search for: [Subject and Keywords = Karkonosze] OR [Subject and Keywords = rekreacja zimowa] OR [Subject and Keywords = klimat] OR [Subject and Keywords = przemiany demograficzne] OR [Subject and Keywords = gospodarka turystyczna] OR [Subject and Keywords = Karkonosze Mts.] OR [Subject and Keywords = winter recreation] OR [Subject and Keywords = climate] OR [Subject and Keywords = demographic changes] OR [Subject and Keywords = tourist business] OR [Title = Uwarunkowania rozwoju rekreacji zimowej we wschodnich Karkonoszach] OR [Creator = Potocki, Jacek] OR [Creator = Piepiora, Zbigniew]