Chrząścik, I., M. Szymalska, and M. Kluska. “Content of Polycyclic Aromatic Hydrocarbons in the Road Asphalt in Olecko”. Studia Ecologiae Et Bioethicae, vol. 6, no. 1, Dec. 2008, pp. 255-61, doi:10.21697/seb.2008.6.1.18.