Mikhail Romanovich Fedotov
Chuvashskiĭ i͡a︡zyk v semʹe altaĭskikh i͡a︡zykov
Ėtimologicheskiĭ slovarʹ chuvashskogo i͡a︡zyka
Issledovateli chuvashskogo i͡a︡zyka
Istoriko-ėtimologicheskoe izuchenie chuvashskogo i altaĭskikh i︠a︡zykov
Literaturno-publit︠s︡isticheskie trudy =
N.I. Ashmarin
Slovarʹ chuvashskikh nekhristianskikh lichnykh imen
Sredstva vyrazhenii︠a︡ modalʹnosti v chuvashskom i︠a︡zyke
V poiskakh rodnykh korneĭ