@ThomasPellard Here's another case of "Yamada Kōyū 山田孝雄": Mentioned by Paul Demiéville in T'oung Pao 40.4/5: 347. (The 1925 Index referred to is Yamada's Issaikyō ongi sakuin 一切經音義索引, see e.g. https://t.co/UxpBijCuUk for a scan.) https://t.co/8F7FoH9iiy