Chodkowska-Miszczuk, J. “Renewable Energy Sources in the Development of Tourism in the Protected Areas of Poland: The Example of the Center of Religious Tourism in Kodeń”. Studia Ecologiae Et Bioethicae, vol. 14, no. 2, June 2016, pp. 9-31, doi:10.21697/seb.2016.14.2.01.