Rapiejko , A., M. Malkiewicz, T. Wolski, A. Konarska, M. Ziemianin, K. Chłopek, G. Siergiejko, K. Szczygielski, P. Bant, and A. Lipiec. “The Analysis of Alder Pollen Season in Selected Cities of Poland in 2021”. Alergoprofil, Vol. 17, no. 4, Nov. 2021, pp. 38-43, doi:10.24292/01.AP.174171121.