Ocherk sanitarno-ėkonomicheskago polozhenī︠i︡a rabochikh na zolo-tykh promyslakh Vitimsko-Olekminskoĭ sistemy ︠I︡Akutskoĭ oblasti : disserta︠t︡sī︠i︡a - Korenev, E. N. (Evgeniĭ Nikolaevich), b. 1867 (Russian history and culture, 1903)