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Clustering Occurrence Patterns in “Red Sign” Auroral Events throughout Japanese History 片岡, 龍峰 カタオカ, リュウホウ KATAOKA, Ryūhō Copyright 2022 National Institute of Japanese Literature, all rights reserved. pdf Center for Collaborative Research on Pre-Modern Texts, National Institute of Japanese Literature (NIJL), National Institutes for the Humanities 2023-03-27 eng journal article https://kokubunken.repo.nii.ac.jp/records/4748 https://doi.org/10.7221/sjlc06.119.0 https://www.nijl.ac.jp/pages/cijproject/sjlc.html Studies in Japanese Literature and Culture 2434-1606 Studies in Japanese Literature and Culture 6 119 143 https://kokubunken.repo.nii.ac.jp/record/4748/files/PW0602.pdf application/pdf 112.2 MB 2023-04-04