{
    "query": {
        "category": "Mathematics",
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            "title": "An Introduction to Homotopy Theory",
            "subtitle": null,
            "author": "P. J. Hilton",
            "isbn": "9780521052658",
            "publisher": "Cambridge University Press",
            "link_to_publisher": "https:\/\/www.cambridge.org\/universitypress\/subjects\/mathematics\/geometry-and-topology\/introduction-homotopy-theory?format=PB"
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}