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    "sources": [
      {
        "url": "https://arxiv.org/abs/2004.12832",
        "title": "ColBERT: Efficient and Effective Passage Search via Contextualized Late Interaction over BERT",
        "publisher": "arXiv / SIGIR 2020 (Khattab, Zaharia / Stanford)",
        "publishedDate": "2020-04-27",
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        "url": "https://github.com/stanford-futuredata/ColBERT",
        "title": "ColBERT — official Stanford FutureData repository",
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