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    "abstract": "About an essential suggestion to Einstein by Levi-Civita in 1915. Unicuique\nsuum.",
    "arxiv_id": "physics/0702244",
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      "Angelo Loinger"
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    "categories": [
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    "title": "Einstein, Levi-Civita, and Bianchi relations",
    "url": "https://arxiv.org/abs/physics/0702244"
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