@article{oai:hokurikugakuin.repo.nii.ac.jp:00000540,
 author = {澁谷, 良穂 and Shibuya, Yoshiho},
 journal = {北陸学院短期大学紀要, Bulletin of Hokuriku Gakuin Junior College},
 month = {Dec},
 pages = {125--137},
 title = {GRAMMATICALIZATION OF JAPANESE VERBS : IRU, MIRU, OKU, AND SIMAU},
 volume = {30},
 year = {1998}
}