Editors J. The joint symposium of the Commission on Periglacial Morphology and the Commission on the Evolution of Slopes of the I.G.U., Poland, 1967. BP [Internet]. 2025 Dec. 17 [cited 2026 Sep. 13];18:5-10. Available from: https://journals.ltn.lodz.pl/Biuletyn-Peryglacjalny/article/view/3383