[1] () http://www.lib.kobe-u.ac.jp/repository/thesis/d1/D1003624.pdf#page=25
[2] 波鴻漫錄 || Sven OsterkampさんはTwitterを使っています 「@JPRidgeway There's also this nice thingy here which might be included as well. ;-) (AFAIK it's not in Unicode yet, so see the pics. Left = 18th c. xylograph, right = 20th c. NKBT edition.) < Yūshi hōgen 遊子方言 (1770) @ https://t.co/zghn1X9oTi https://t.co/b0aoh1jh1j」 / Twitter, 午後11:28 · 2021年7月17日 , https://twitter.com/schrift_sprache/status/1416404455105380353