@book{ BA41001890,
  author    = "Beethoven, Ludwig van and 前田, 昭雄 ",
  title     = "孤独の芸術家 : 1810-1813",
  publisher = "講談社",
  year      = "1999",
  series    = "ベートーヴェン全集",
  number    = "第6巻",
  URL       = "http://ci.nii.ac.jp/ncid/BA41001890"
}