title: After two decades a second anchor for the VPDB delta13C scale.
authors.forename: Tyler B
authors.initials: TB
authors.lastname: Coplen
authors.forename: Willi A
authors.initials: WA
authors.lastname: Brand
authors.forename: Matthias
authors.initials: M
authors.lastname: Gehre
authors.forename: Manfred
authors.initials: M
authors.lastname: Gröning
authors.forename: Harro A J
authors.initials: HA
authors.lastname: Meijer
authors.forename: Blaza
authors.initials: B
authors.lastname: Toman
authors.forename: R Michael
authors.initials: RM
authors.lastname: Verkouteren
mesh_terms: D002247:Carbon Isotopes / Q000737:chemistry* / Q000592:standards*; D017408:Guidelines as Topic; D038622:Internationality; D013058:Mass Spectrometry / Q000592:standards*; D012015:Reference Standards; D012016:Reference Values
chemical_list: D002247:Carbon Isotopes