@article{oai:tsukuba.repo.nii.ac.jp:00017569,
 author = {Sakamoto, Kuniko},
 issue = {1},
 journal = {Tsukuba Journal of Mathematics},
 month = {Jun},
 pages = {129--142},
 title = {Three-Distance Sequences with Three Symbols},
 volume = {27},
 year = {2003}
}