{
    "query": {
        "category": "Mathematics",
        "publication_date": "1989-12",
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    "items": [
        {
            "title": "Advances in Homotopy Theory",
            "subtitle": "Papers in Honour of I M James, Cortona\u00a01988",
            "author": "S. Salamon; B. Steer; W. Sutherland",
            "isbn": "9780521379076",
            "publisher": "Cambridge University Press",
            "link_to_publisher": "https:\/\/www.cambridge.org\/universitypress\/subjects\/mathematics\/geometry-and-topology\/advances-homotopy-theory-papers-honour-i-m-james-cortona-1988?format=PB"
        },
        {
            "title": "Braids and Coverings",
            "subtitle": "Selected\u00a0Topics",
            "author": "Vagn Lundsgaard Hansen",
            "isbn": "9780521387576",
            "publisher": "Cambridge University Press",
            "link_to_publisher": "https:\/\/www.cambridge.org\/universitypress\/subjects\/mathematics\/geometry-and-topology\/braids-and-coverings-selected-topics?format=PB"
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        {
            "title": "The Total Incomes System of Accounts",
            "subtitle": null,
            "author": "Eisner, Robert",
            "isbn": "9780226196381",
            "publisher": "University of Chicago Press",
            "link_to_publisher": "https:\/\/press.uchicago.edu\/ucp\/books\/book\/chicago\/T\/bo3632546.html"
        }
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}