{
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    "name": "Kołczan Książek",
    "language": "pl-PL",
    "url": "https://www.kolczanksiazek.pl"
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  "formats": "Każda podstrona ma dwie wersje z tymi samymi danymi: JSON (adres strony + .json) i markdown (adres strony + .md). Do każdego `url` w tym dokumencie można dopisać .json albo .md.",
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  "countries_count": 3,
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    {
      "title": "C#. Rusz głową! Wydanie V Andrew Stellman",
      "subtitle": null,
      "slug": "c-rusz-glowa-wydanie-v-andrew-stellman",
      "url": "https://www.kolczanksiazek.pl/andrew-stellman/c-rusz-glowa-wydanie-v-andrew-stellman",
      "first_published": "2025-08-13",
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    {
      "title": "C#. Rusz głową! w.4",
      "subtitle": null,
      "slug": "c-rusz-glowa-w4",
      "url": "https://www.kolczanksiazek.pl/andrew-stellman/c-rusz-glowa-w4",
      "first_published": "2023-01-01",
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    {
      "title": "Agile Rusz głową!",
      "subtitle": null,
      "slug": "agile-rusz-glowa",
      "url": "https://www.kolczanksiazek.pl/andrew-stellman/agile-rusz-glowa",
      "first_published": "2018-01-01",
      "series": null
    },
    {
      "title": "Agile. Przewodnik po zwinnych metodykach programowania Andrew Stellman",
      "subtitle": null,
      "slug": "agile-przewodnik-po-zwinnych-metodykach-programowania-andrew-stellman",
      "url": "https://www.kolczanksiazek.pl/andrew-stellman/agile-przewodnik-po-zwinnych-metodykach-programowania-andrew-stellman",
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}