@Article{acpd-8-7805-2008,
AUTHOR = {Saarikoski, S. and Timonen, H. and Saarnio, K. and Aurela, M. and J\"arvi, L. and Keronen, P. and Kerminen, V.-M. and Hillamo, R.},
TITLE = {Sources of organic carbon in PM$_{1}$ in Helsinki urban air},
JOURNAL = {Atmospheric Chemistry and Physics Discussions},
VOLUME = {8},
YEAR = {2008},
NUMBER = {2},
PAGES = {7805--7846},
URL = {http://www.atmos-chem-phys-discuss.net/8/7805/2008/},
DOI = {10.5194/acpd-8-7805-2008}
}