@article{oai:shoin.repo.nii.ac.jp:00000202, author = {Spaelti, Philip}, journal = {Theoretical and applied linguistics at Kobe Shoin : トークス}, month = {Mar}, pages = {39--54}, title = {Emergence of the Unmarked in Ponapean Nasal Substitution}, volume = {1}, year = {1998} }