Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Matsushima Hajime,Mass fragmentographic determination of polynuclear aromatic hydrocarbons in soil.,Nippon Eiseigaku Zasshi (Japanese Journal of Hygiene),00215082,The Japanese Society for Hygiene,1982,37,2,549-556,https://cir.nii.ac.jp/crid/1390001206362145536,https://doi.org/10.1265/jjh.37.549