ŚWITONIAK, Marcin; AUGUSTYNIAK, Dawid; CHARZYŃSKI, Przemysław. The internet as a source of knowledge about soil cover of Poland. Bulletin of Geography. Physical Geography Series, [S. l.], n. 14, p. 91–98, 2018. DOI: 10.2478/bgeo-2018-0009. Disponível em: https://apcz.umk.pl/BOGPGS/article/view/16716. Acesso em: 8 jul. 2025.