@Article{acpd-8-10005-2008,
AUTHOR = {Salma, I. and L\'ang, G. G.},
TITLE = {How many carboxyl groups does an average molecule of humic-like substances contain?},
JOURNAL = {Atmospheric Chemistry and Physics Discussions},
VOLUME = {8},
YEAR = {2008},
NUMBER = {3},
PAGES = {10005--10020},
URL = {http://www.atmos-chem-phys-discuss.net/8/10005/2008/},
DOI = {10.5194/acpd-8-10005-2008}
}