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V.A. Kuchin (1986). О дате рождения Александра Невского [About the Birthdate of Alexander Nevsky]. Вопросы истории [Questions of History] (in Russian) (2): 174–176. Archived from the original on 22 February 2015.
V.A. Kuchin (1986). О дате рождения Александра Невского [About the Birthdate of Alexander Nevsky]. Вопросы истории [Questions of History] (in Russian) (2): 174–176. Archived from the original on 22 February 2015.