@Article{acpd-7-3013-2007,
AUTHOR = {Mahowald, N. M. and Ballantine, J. A. and Feddema, J. and Ramankutty, N.},
TITLE = {Global trends in visibility: implications for dust sources},
JOURNAL = {Atmospheric Chemistry and Physics Discussions},
VOLUME = {7},
YEAR = {2007},
NUMBER = {1},
PAGES = {3013--3071},
URL = {http://www.atmos-chem-phys-discuss.net/7/3013/2007/},
ISSN = {1680-7367}
}