@article{oai:minpaku.repo.nii.ac.jp:00002540,
 author = {菊澤, 律子 and Kikusawa, Ritsuko},
 journal = {Senri Ethnological Studies},
 month = {Mar},
 pages = {115--155},
 title = {Optional Ergative Marking and the Emergence of Passive Structures in Austronesian Languages},
 volume = {77},
 year = {2012},
 yomi = {キクサワ, リツコ}
}