@Article{acp-7-839-2007, AUTHOR = {Sogacheva, L. and Hamed, A. and Facchini, M. C. and Kulmala, M. and Laaksonen, A.}, TITLE = {Relation of air mass history to nucleation events in Po Valley, Italy, using back trajectories analysis}, JOURNAL = {Atmospheric Chemistry and Physics}, VOLUME = {7}, YEAR = {2007}, NUMBER = {3}, PAGES = {839--853}, URL = {http://www.atmos-chem-phys.net/7/839/2007/}, ISSN = {1680-7316} }