Author	Title	Journal	ISSN	Publisher	Date	Volume	Number	Page	URL	URL(DOI)
Hitotumatu Shin	On a certain rational approximation of arctanh X	Commentarii mathematici Universitatis Sancti Pauli	0010258X	Rikkyo University	1967-07-00	16	1	5-9	http://ci.nii.ac.jp/naid/110007702534/en/