Titsingh, Isaac. (1834). Annales des empereurs du japon, pp. 142–143; Brown, Delmer et al. (1979). Gukanshō, pp. 298–300; Varely, H. Paul. (1980). Jinnō Shōtōki, pp. 190–191.
Titsingh, p. 142; Brown, p. 298; Varley, p. 44; a distinct act of senso is unrecognized prior to Emperor Tenji; and all sovereigns except Jitō, Yōzei, Go-Toba, and Fushimi have senso and sokui in the same year until the reign of Emperor Go-Murakami.
