Geographical and political aspects of the Czech-Polish transborder conservation of natural and cultural heritage of the Karkonosze Mountains - Leśniewska-Napierała, Katarzyna; Sobczyński, Marek (. Geographical-political aspects of the transborder conservation of natural and cultural heritage ; vol. 2. Practice in the field of the transborder heritage conservation. - Łódź : University of Łódź, Silesian Institute in Opole, 2015. - 145 Seiten. - Illustrationen. - ISBN 978-83-7126-312-5, 2015)