Ogata Proceedings of the Japan Academy, 1949 , vol. 25, # 11 p. 17 Chem.Abstr., 1952 , p. 3451 Full Text Show Details Ogata Nippon Shashin Gakkaishi, 1950 , vol. 13, p. 52,53 Chem.Abstr., 1952 , p. 6531