@article{oai:shotoku.repo.nii.ac.jp:00001548,
 author = {Volker, Craig},
 journal = {聖徳学園岐阜教育大学紀要, Bulletin of Gifu College of Education},
 month = {Feb},
 note = {As a result of increased mobility, interethnic marriage, and other social change, all speakers of the Nalik language of New Ireland, Papua New Guinea are now at least bilingual. Tok Pisin is used in an increasing number of domains, sometimes to the exclusion of Nalik. Many children now grow up with Tok Pisin (New Guinea Pidgin English) as their dominant language. As a result, the lexicon and grammatical structure of Nalik are changing to resemble motre closely these of Tok Pisin. For each speaker this change is gradual, causing considerable linguistic variation among different groups of speakers. The long-tern future of Nalik depends on efforts by New Ireland leaders to preserve its vitality.},
 pages = {107--123},
 title = {パプア・ニューギニアの一社会における言語パターンの変化},
 volume = {25},
 year = {1993}
}