Formation of the Demon of Pestilence and its Influence in Japan: －Etymology of the Word 鬼 (Oni or Ogre) and its Relationship with Onryo (Grudge-Bearing Spirits) and Goryo (Evil Spirits)－ 論文 建治 山口・Kenji Yamaguchi ·2013-03-20 ·pp. 1-18 National Institute of Informatics kanagawa-u.repo.nii.ac.jp