Porsin Artem A. «The Ulus system of the Golden Horde in the 13th century» // Rusin 2025. №82 C.28-75
Vorotyntsev Leonid V. «“Idosha ko batyevi”: The “Horde” diplomacy by Daniel and Vasylko Romanovych in the 1240-50s» // Rusin 2022. №70 C.54-71
