Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) ITAYA Tetsumaru and NAGAO Keisuke and INOUE Kensaku and HONJOU Yoshiki and OKADA Toshinori and OGATA Atsumi,Argon isotope analysis by a newly developed mass spectrometric system for K-Ar dating.,Mineralogical Journal,0544-2540,Japan Association of Mineralogical Sciences,1991,15,5,203-221,https://cir.nii.ac.jp/crid/1390001206545756544,https://doi.org/10.2465/minerj.15.203