"Northern or Outer Mongolia declared independence from China in 1911 and became a Marxist Socialist state in 1921. In order to clarify the identity of each household there was a government regulation that each person had to put their father's name in front of their own name as a patronymic. For instance, Lobsangchoijuriin Sechin, Schinii Bat, and Btiin Amar. In addition, family names were maintained and officially recorded."
- Sechin Jagchild and Paul V. Hyer, "Genealogy and Family History in Mongolia," in World Conference on Records: Preserving Our Heritage, August 12-15, 1980. FHL US/CAN Book 929.1 W893 1980 v. 11.