Não informado. (2020). Journal of the Faculty of Science, Hokkaido Imperial University. Hokkaido University, Department of Mathematics.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Journal of the Faculty of Science, Hokkaido Imperial University. Sapporo, Japão: Hokkaido University, Department of Mathematics, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Journal of the Faculty of Science, Hokkaido Imperial University. Hokkaido University, Department of Mathematics, 2020.
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