@article{oai:aue.repo.nii.ac.jp:00000671,
 author = {Hashimoto, Yukihiro},
 journal = {愛知教育大学研究報告. 自然科学},
 month = {Mar},
 note = {text},
 pages = {1--6},
 title = {A fractal set associated with the Collatz problem},
 volume = {56},
 year = {2007}
}