Title: Chuvash-bator, velikiĭ polkovodet︠s︡ Volzhskoĭ Bolgarii : istoricheskie ocherki, statʹi, folʹklornye materialy i stikhi o geroe borʹby s tataro-mongolami /
Authors: I︠U︡khma, Mishshi.
Year: 2014
Subjects: Chuvash (Turkic people); Bulgars (Turkic people); Mongols; Tatars; Heroes; Civilization; Russia (Federation) Chuvashia.; Russia (Federation) Tatarstan