Jonczak, Jerzy. “Pedological Aspects in the Functioning of Spring Niches As Transition Zones Between Underground and Superficial Parts of the Water Cycle in a River Basin”. Ecological Questions 15, no. 1 (October 30, 2013): 35–43. Accessed July 19, 2024. https://apcz.umk.pl/EQ/article/view/v10090-011-0033-4.