Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Takakuwa Eimatsu and Takahashi Masayuki and Koizumi Kiyoshi and Sukegawa Hideya,A method for describing the function of concentration maintenance (TAF),Nippon Eiseigaku Zasshi (Japanese Journal of Hygiene),00215082,The Japanese Society for Hygiene,1963,18,2,241-246,https://cir.nii.ac.jp/crid/1390001206362839552,https://doi.org/10.1265/jjh.18.241