KEJNA, MAREK, JOANNA USCKA-KOWALKOWSKA, ANDRZEJ ARAŹNY, MIECZYSŁAW KUNZ, RAFAŁ MASZEWSKI, and RAJMUND PRZYBYLAK. 2015. “SPATIAL DIFFERENTIATION OF GLOBAL SOLAR RADIATION IN TORUŃ AND ITS SUBURBAN AREA (CENTRAL POLAND) IN 2012”. Bulletin of Geography. Physical Geography Series, no. 7 (March):27-56. https://doi.org/10.2478/bgeo-2014-0002.