@techreport{weko_43269_1,
   author	 = "相川,哲弥",
   title	 = "戸籍簿や経理書類などの電子化文書の不正書き換え防止対策。",
   year 	 = "1997",
   institution	 = "岡山大学理学部数学科",
   number	 = "93(1997-DD-009)",
   month	 = "sep"
}