{
    "query": {
        "category": "Mathematics",
        "publication_date": "1994-09",
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    "items": [
        {
            "title": "Differential Forms and Connections",
            "subtitle": null,
            "author": "R. W. R. Darling",
            "isbn": "9780521468008",
            "publisher": "Cambridge University Press",
            "link_to_publisher": "https:\/\/www.cambridge.org\/universitypress\/subjects\/mathematics\/geometry-and-topology\/differential-forms-and-connections?format=PB"
        }
    ]
}