POSPIESZYŃSKA, Aleksandra, KOPROWSKI, Marcin and PRZYBYLAK, Rajmund Krzysztof. Optical density of Scots pine wood and climatic conditions in Toruń, Poland. Bulletin of Geography. Physical Geography Series. Online. 17 December 2018. No. 15, pp. 41-52. [Accessed 29 June 2025]. DOI 10.2478/bgeo-2018-0014.