A source-orientated approach for estimating daytime concentrations of biogenic volatile organic compounds in an upper layer of a boreal forest canopy - Lappalainen, Hanna K.; Sevanto, Sanna; Dal Maso, Miikka; Taipale, Risto; Kajos, Maija; Kolari, Pasi; Bäck, Jaana (Boreal Environment Publishing Board, 2017)