@Article{acpd-6-11209-2006, 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 Discussions}, VOLUME = {6}, YEAR = {2006}, NUMBER = {6}, PAGES = {11209--11246}, URL = {http://www.atmos-chem-phys-discuss.net/6/11209/2006/}, ISSN = {1680-7367} }