Bloem, E., and J. Ciaranek. “The Influence of Lead Compounds on Selected Morphological Features and the Physiological Processes of Zea Mays L”. Annales Universitatis Paedagogicae Cracoviensis Studia Naturae, vol. 6, Nov. 2021, pp. 63-80, doi:10.24917/25438832.6.4.