Koidz. No year - Koidzumi G (1929) Contributiones ad Cognitionem Florae Asiae Orientalis (Continued from Vol. XL p. 348.). Shokubutsugaku Zasshi 43: 382-407. doi: 10.15281/jplantres1887.43.382.
There is no corrections for Deutzia ogatai yet.