{
    "query": {
        "category": "Mathematics",
        "publication_date": "1968-08",
        "nr_of_items": 1
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    "items": [
        {
            "title": "Functions of a Complex Variable",
            "subtitle": null,
            "author": "by Vladimir I. Smirnov and N. A. Lebedev",
            "isbn": "9780262190466",
            "publisher": "MIT Press",
            "link_to_publisher": "https:\/\/mitpress.mit.edu\/9780262190466\/functions-of-a-complex-variable"
        }
    ]
}