Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Omori Yasuo and Sanbongi Koji,Activity of SiO2 and Al2O3 in the Slag of CaO-MgO-SiO2-Al2O3-System,Journal of the Japan Institute of Metals and Materials,00214876,The Japan Institute of Metals and Materials,1961,25,2,136-139,https://cir.nii.ac.jp/crid/1390001206482802816,https://doi.org/10.2320/jinstmet1952.25.2_136