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            "title": "An Introduction to Hankel Operators",
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            "isbn": "9780521367912",
            "publisher": "Cambridge University Press",
            "link_to_publisher": "https:\/\/www.cambridge.org\/universitypress\/subjects\/mathematics\/abstract-analysis\/introduction-hankel-operators?format=PB"
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        {
            "title": "Analysis at Urbana",
            "subtitle": null,
            "author": "E. Berkson; T. Peck; J. Uhl",
            "isbn": "9780521364362",
            "publisher": "Cambridge University Press",
            "link_to_publisher": "https:\/\/www.cambridge.org\/universitypress\/subjects\/mathematics\/abstract-analysis\/analysis-urbana-volume-1?format=PB"
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