During three periods of ethnic identification work after NUMBER@1 , professor PERSON@1 , PERSON@2 , PERSON@3 and a lot of academic masters and scholars from anthropology and ethnic study circles had made their great contributions .

Biography During three periods of ethnic identification work after NUMBER@1 , professor PERSON@4 , PERSON@5 , PERSON@6 and a lot of academic masters and scholars from anthropology and ethnic study circles had made their great contributions .
