Source apportionment and modelling study of particulate matter from the key sources in TartuMaasikmets, Marek; Teinemaa, Erik; Keernik, Hannes; Kupri, Hanna-Lii20th International Scientific Conference EcoBalt 2016 : Tartu, Estonia, October 9-12 : book of abstracts2016 / p. 25http://akki.ut.ee/wp-content/uploads/2015/01/Abstracts_Book_EcoBalt_2016.pdf