@misc{Zydroń_Adam_Financial,
 author={Zydroń, Adam and Kayzer, Dariusz and Fiedler, Michał and Korytowski, Mariusz},
 address={Koszalin},
 howpublished={online},
 publisher={Politechnika Koszalińska},
 language={eng},
 title={Financial inclinations of visitors to the wielkopolska national park},
 keywords={value of environment, national park, tourism development, nature conservation, forest},
}