{
    "query": {
        "category": "Economics",
        "publication_date": "1987-05",
        "nr_of_items": 3
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    "items": [
        {
            "title": "Toward a New Iron Age?",
            "subtitle": "Quantitative Modeling of Resource Exhaustion",
            "author": "Robert B. Gordon, Tjalling C. Koopmans, William D. Nordhaus, Brian J. Skinner",
            "isbn": "9780674898189",
            "publisher": "Harvard University Press",
            "link_to_publisher": "https:\/\/www.hup.harvard.edu\/books\/9780674898189"
        },
        {
            "title": "R&D, Patents and Productivity",
            "subtitle": null,
            "author": "Griliches, Zvi",
            "isbn": "9780226308845",
            "publisher": "University of Chicago Press",
            "link_to_publisher": "https:\/\/press.uchicago.edu\/ucp\/books\/book\/chicago\/R\/bo5953198.html"
        },
        {
            "title": "Rational Choice",
            "subtitle": null,
            "author": "Hogarth, Robin M.",
            "isbn": "9780226348599",
            "publisher": "University of Chicago Press",
            "link_to_publisher": "https:\/\/press.uchicago.edu\/ucp\/books\/book\/distributed\/R\/bo26204633.html"
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}