@article{oai:tsukuba.repo.nii.ac.jp:00016152,
 author = {Morita, Jun},
 issue = {2},
 journal = {Tsukuba Journal of Mathematics},
 month = {Dec},
 pages = {439--442},
 title = {A combinatorial proof for Artin's presentation of the braid group Bn and some cyclic analogue},
 volume = {16},
 year = {1992}
}