@article{oai:minpaku.repo.nii.ac.jp:00002715,
 author = {Rydving, Håkan},
 journal = {Senri Ethnological Studies},
 month = {Feb},
 pages = {357--370},
 title = {Language Proficiency and Ethnicity : The Sami Case},
 volume = {66},
 year = {2004}
}