Kitagawa, Joseph. (1987). On Understanding Japanese Religion, p. 145, σ. 145, στα Google Books; excerpt: "emphasis on the undisrupted chronological continuity from myths to legends and from legends to history, it is difficult to determine where one ends and the next begins. At any rate, the first ten legendary emperors are clearly not reliable historical records." Boleslaw Szczesniak, "The Sumu-Sanu Myth. Notes and Remarks on the Jimmu Tenno Myth", in Monumenta Nipponica, Vol. 10, No. 1/2 (1954), σελ. 107–126.
