@article{oai:minpaku.repo.nii.ac.jp:00002575,
 author = {LaPolla, Randy J.},
 journal = {Senri Ethnological Studies},
 month = {Sep},
 pages = {243--253},
 title = {Causes and Effects of Substratum, Superstratum and Adstratum Influence, with Reference to Tibeto-Burman Languages},
 volume = {75},
 year = {2009}
}