@misc{Pokojski_Wojciech_Importance,
 author={Pokojski, Wojciech and Angiel, Joanna and Pokojska, Paulina},
 howpublished={online},
 publisher={Educational Research Institute},
 language={eng},
 type={article},
 title={Importance of digital spatial data in environmental education},
 keywords={sustainable development, spatial data, GIS, environmental education},
}