@article{oai:tsukuba.repo.nii.ac.jp:00003452,
 author = {坪井, 美樹 and Tsuboi, Yoshiki},
 journal = {文藝言語研究. 言語篇},
 month = {Mar},
 pages = {102(43)--118(27)},
 title = {平安時代における「命令形」の成立},
 volume = {23},
 year = {1993}
}