Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Ryoki Kunihiro,METHOD OF DIVIDING UNDERGROUND MODEL INTO TRIANGULAR FORMS AND ITS APPLICATION IN GRAVITY ANALYSIS,Geoinformatics,0388502X,Japan Society of Geoinformatics,1996,7,1-2,117-127,https://cir.nii.ac.jp/crid/1390282679416140672,https://doi.org/10.6010/geoinformatics1990.7.1-2_117