@book{
  author = "Einstein, Albert, 1879-1955, 矢野, 健太郎(1912-1993)",
  title = "相対論の意味 : 附:非対称場の相対論",
  year: 1958
  month: 4
  key = "相対性原理",
  publisher = "岩波書店",
  address = "東京",
  ISSN/ISBN = "9784000056007 [400005600X]",
}