@techreport{weko_32555_1,
   author	 = "岩間,一雄 and 宮野,英次",
   title	 = "例題生成系の安全性について",
   year 	 = "1992",
   institution	 = "九州大学工学部, 九州大学工学部",
   number	 = "9(1991-AL-025)",
   month	 = "jan"
}