Oforo (Kalun-Shan'). The family of the Manchu man, A. I.
Офоро (Калун-шань). Семья маньчжура А. И.
施洛科国洛夫. 谢尔盖.米哈伊尔洛维奇
Archive of the Museum of Ethnography and Anthropology, Russian Academy of Sciences, St. Petersburg