USCKA-KOWALKOWSKA, J. DIRECT SOLAR RADIATION AND ATMOSPHERIC TURBIDITY IN MIKOŁAJKI IN THE YEARS 1971–1980 AND 1991–2000. Bulletin of Geography. Physical Geography Series, [S. l.], n. 2, p. 19–33, 2009. DOI: 10.2478/2319. Disponível em: https://apcz.umk.pl/BOGPGS/article/view/2319. Acesso em: 1 jul. 2024.