@article{oai:tsukuba.repo.nii.ac.jp:00016282,
 author = {Takahashi, Moto-o},
 journal = {Tsukuba Journal of Mathematics},
 month = {Dec},
 pages = {27--34},
 title = {An alternative proof of Birman-Hilden-Viro's theorem},
 volume = {2},
 year = {1978}
}