@misc{7528,
  author = {Lama, Ziwo Qiu-Fuyuan},
  title  = {Subgrouping of Nisoic (Yi) languages: A study from the perspectives of shared innovation and phylogenetic estimation. Ph.D. dissertation, University of Texas, Arlington. (http://language.psy.auckland.ac.nz/austronesian/ (accessed June 2013))},
  year   = {2012}
}