Samek, L., Stegowski, Z., Styszko, K., Furman, L., Zimnoch, M., Skiba, A., Kistler, M., Kasper-Giebl, A., Rozanski, K., & Konduracka, E. (2020). Seasonal variations of chemical composition of PM2.5 fraction in the urban area of Krakow, Poland: PMF source attribution. AIR QUALITY ATMOSPHERE AND HEALTH, 13(1), 89–96. https://doi.org/10.1007/s11869-019-00773-x