title: Determination of stable carbon isotopic compositions of low molecular weight dicarboxylic acids and ketocarboxylic acids in atmospheric aerosol and snow samples.
authors.affiliation: Institute of Low Temperature Science, Hokkaido University, N19 W8 Kita-ku, Sapporo 060-0819, Japan. kawamura@lowtem.hokudai.ac.jp
authors.forename: Kimitaka
authors.initials: K
authors.lastname: Kawamura
authors.forename: Tomomi
authors.initials: T
authors.lastname: Watanabe