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Hokkaido University Collection of Scholarly and Academic Papers >

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TypeAuthor(s)TitleOther TitlesCitationCitation(alt)Issue Date
article (author version)Sawada, Ken; Nakamura, Hideto; Arai, Takaaki; Tsukagoshi, MinoruEvaluation of paleoenvironment using terpenoid biomarkers in lignites and plant fossil from the Miocene Tokiguchi Porcelain Clay Formation at the Onada mine, Tajimi, central Japan-International Journal of Coal Geology-1-Mar-2013
article (author version)Tsukagoshi, Minoru; Sawada, Ken; Akimoto, Shin-ichiA fossil aphid gall from the middle Pleistocene sediment in Hyogo Prefecture, western Japan-Entomological science-Sep-2019
article (author version)Sawada, Ken; Kaiho, Kunio; Okano, KazukiKerogen morphology and geochemistry at the Permian-Triassic transition in the Meishan section, South China: Implication for paleoenvironmental variation-Journal of Asian Earth Sciences-2-Aug-2012
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