@book{ BN10367153,
  author    = "平田, 正敏 ",
  title     = "ポートフォリオ分析とコンピュータ",
  publisher = "西南学院大学学術研究所",
  year      = "1978",
  series    = "紀要 / 西南学院大学学術研究所 [編]",
  number    = "No.13",
  URL       = "https://ci.nii.ac.jp/ncid/BN10367153"
}