Obidoska, G., Nagórska, E. and Nadulska, A. 2018. Morphological changes and micronuclei frequency in microspore tetrads of Achillea millefolium from the areas of coal-fired power plants. Annals of Warsaw University of Life Sciences. Horticulture and Landscape Architecture. 39 (Oct. 2018), 49–53.