Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) OYAMA Keizo and KANDO Noriko and SATOH Shinichi,NACSIS Online Journal Project(Digital Library),The Journal of Information Science and Technology Association,09133801,"Information Science and Technology Association, Japan",1999,49,6,295-300,https://cir.nii.ac.jp/crid/1390282679180947200,https://doi.org/10.18919/jkg.49.6_295