@book{ BD00904493,
 author = "Vittorio, N.",
 title = "An overview of general relativity and space-time",
 publisher = "CRC Press",
 year = "2022",
 series = "Series in astronomy and astrophysics / M. Elvis, A. Natta, editors",
 number = "",
 URL = "https://ci.nii.ac.jp/ncid/BD00904493"
}
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