Brown, p. 261; Varley, pp. 120–121; Brown, p. 261; [http://books.google.com/books?
id=18oNAAAAIAAJ&pg=PP9&dq=nipon+o+dai+itsi+ran#PRA1-PA33,M1 Titsingh, p. 33].
Brown, pp. 277–279; Varley, pp. 148–150; [http://books.google.com/books?
id=18oNAAAAIAAJ&pg=PP9&dq=nipon+o+dai+itsi+ran#PRA1-PA86,M1 Titsingh, pp. 86]–95.
Brown, pp. 329–330; Varley, p. 212; [http://books.google.com/books?
id=18oNAAAAIAAJ&pg=PP9&dq=nipon+o+dai+itsi+ran#PRA1-PA191,M1 Titsingh, pp. 194]–195.
A
list of other Japanese calling themselves or being called emperors (追尊天皇, 尊称天皇, 異説に天皇とされる者, 天皇に準ずる者, 自称天皇) can be seen on the Japanese
Wikipedia page 天皇の一覧 (List of Japanese monarchs).