found:Kettenhofen, E. Die römisch-persischen Kriege des 3. Jahrhunderts n. Chr. nach der Inschrift Šāhpuhrs I. an der Kaʻbe-ye Zartošt (SKZ), 1982:t.p. (Šāhpuhrs I)
found:Rypka(King Shāpūr I)
found:LC data base, 10/20/83(hdg.: Shāpūr I, King of Iran, d. 272)
found:Sprengling, M. Third century Iran, Sapor and Kartir, 1953:t.p. (Sapor) p. iii (Sapor I) p. 38 (Shahpuhr I)
found:Encyclopaedia Britannica 15th ed.(Shāpūr I, Pahlavi Shahpuhr (translated as Son of the King), Greek Sapores, commonly Sapor; d. A.D. 272; no longer content to describe himself as "king of kings of Iran," as his father had done, styled himself "king of kings of Iran and non-Iran")