Panayiotis Kalkavouras, Georgios Grivas, Iasonas Stavroulas, Kalliopi Petrinoli, Aikaterini Bougiatioti, Eleni Liakakou, Evangelos Gerasopoulos, Nikolaos Mihalopoulos, Source apportionment of fine and ultrafine particle number concentrations in a major city of the Eastern Mediterranean, Science of The Total Environment,2023. DOI: https://doi.org/10.1016/j.scitotenv.2024.170042