@techreport{weko_32164_1,
   author	 = "永持仁 and 茨木,俊秀",
   title	 = "劣モジュラ，正モジュラシステムの多面体構造",
   year 	 = "1998",
   institution	 = "京都大学情報学研究科数理工学",
   number	 = "78(1998-AL-064)",
   month	 = "sep"
}