[1] RLM文字 ‏ - faireal.net http://www.faireal.net/articles/7/11/#d30312

[2] ir1981.PDF - 198.pdf, 11/2/2022, 3:16:35 AM, 12/10/2022, 5:55:02 AM https://itscj.ipsj.or.jp/ir/198.pdf

[3] Microsoft Word - reg9_v3_.doc - 234.pdf, 11/2/2022, 3:16:38 AM, 12/10/2022, 6:02:04 AM https://itscj.ipsj.or.jp/ir/234.pdf