@Article{acp-7-309-2007,
AUTHOR = {Vehkam\"aki, H. and M\"a\"att\"anen, A. and Lauri, A. and Napari, I. and Kulmala, M.},
TITLE = {Technical Note: The heterogeneous Zeldovich factor},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {7},
YEAR = {2007},
NUMBER = {2},
PAGES = {309--313},
URL = {http://www.atmos-chem-phys.net/7/309/2007/},
DOI = {10.5194/acp-7-309-2007}
}