Shahbazi, A Sh.: The Birthdate of Firdausi (3rd Dey 308 Yazdigardi = 3rd January 940)
 

Zeitschrift der Deutschen Morgenländischen Gesellschaft → Bd. 134 (1984) → The Birthdate of Firdausi (3rd Dey 308 Yazdigardi = 3rd January 940)