Kostova, I., Apostolova, D. and Stefanova, M. (2023) “Polycyclic Aromatic Hydrocarbons (PAHs) in Bulgarian Coals: Occurrence, Distribution and Carcinogenicity”, Proceedings of the Bulgarian Academy of Sciences. Sofia, Bulgaria, 76(8), pp. 1222–1230. doi: 10.7546/CRABS.2023.08.08.