Zakrzewski et al. GCA

Stable carbon isotopic composition of the retene and dehydroabietic acid methyl ester in geological samples as well as results of the long-to-short hydrocarbons ratio.地质样品中惹烯（retene）与脱氢松香酸甲酯（dehydroabietic acid methyl ester）的稳定碳同位素组成，以及长短链烃比值的相关结果。