@book{
  author = "河田, 敬義(1916-1993)",
  title = "代数的整数論",
  year: 2009
  month: 9
  key = "代数的整数論",
  publisher = "共立出版",
  address = "東京",
  edition = "復刊",
  ISSN/ISBN = "9784320018983 [4320018982]",
}