Tomography studies of coins shed light on the history of Volga Bulgaria
Image: Photographs of the investigated coins of ancient Volga Bulgaria: the Samanid multidirham (a) and the Bulat-Timur dirham (b). For the...
Image: Photographs of the investigated coins of ancient Volga Bulgaria: the Samanid multidirham (a) and the Bulat-Timur dirham (b). For the...