• Aerosol decadal trends - Part 1: In-situ optical measurements at GAW and IMPROVE stations 

      Coen, M. Collaud; Andrews, E.; Asmi, A.; Baltensperger, U; Bukowiecki, N.; Day, D.; Fiebig, Markus; Fjæraa, Ann Mari; Flentje, H.; Hyvärinen, A.; Jefferson, A; Jennings, S.G.; Kouvarakis, G.; Lihavainen, H.; Myhre, Cathrine Lund; Malm, W. C.; Mihapopoulos, N.; Molenar, J. V.; O'Dowd, C; Ogren, J.A.; Schichtel, B. A.; Sheridan, P.; Virkkula, A.; Weingartner, E.; Weller, R.; Laj, P. (Journal article; Peer reviewed, 2013)