Żurek, Krzysztof, and Tomasz Kalicki. “Structure of the Brzozówka River Valley in the Light of Geophysical and Geological Study, NE Poland”. Acta Geographica Lodziensia 111 (December 23, 2021): 59–69. Accessed April 8, 2025. https://journals.ltn.lodz.pl/Acta-Geographica-Lodziensia/article/view/1584.