WOKOUN, René; MURGAŠ, František a NIŽNANSKÝ, Branislav. Several geographical insights to the regional differentiation of development, quality of life and perception of the landscape. 2nd ed. Kraków: Międzynarodowe Stowaryszenie Uczelni Wyższych "Scientia, Ars, Educatio", 2009. ISBN 9788360837306.
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