Number of days with thunderstorm in the area of Bydgoszcz in the years 1971-2010 using the example of the Bydgoszcz-Airport weather station. GAT [Internet]. 2021 Dec. 1 [cited 2024 Nov. 21];2(9):67-74. Available from: https://czasopisma.ukw.edu.pl/index.php/gat/article/view/162