{
  "type": "author",
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    "name": "Kołczan Książek",
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    "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.",
  "name": "Pius XI",
  "slug": "pius-xi",
  "url": "https://www.kolczanksiazek.pl/pius-xi",
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  "markdown": "https://www.kolczanksiazek.pl/pius-xi.md",
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  "books": [
    {
      "title": "Casti Connubii. Encyklika papieża Piusa XI o małżeństwie chrześcijańskim",
      "subtitle": null,
      "slug": "casti-connubii-encyklika-papieza-piusa-xi-o-malzenstwie-chrzescijanskim",
      "url": "https://www.kolczanksiazek.pl/pius-xi/casti-connubii-encyklika-papieza-piusa-xi-o-malzenstwie-chrzescijanskim",
      "first_published": "2026-01-10",
      "series": null
    },
    {
      "title": "Quadragesimo Anno",
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      "url": "https://www.kolczanksiazek.pl/pius-xi/quadragesimo-anno",
      "first_published": "2021-01-01",
      "series": null
    },
    {
      "title": "Encyklika Casti connubii (O małżeństwie chrześcijańskim)",
      "subtitle": null,
      "slug": "encyklika-casti-connubii-o-malzenstwie-chrzescijanskim",
      "url": "https://www.kolczanksiazek.pl/pius-xi/encyklika-casti-connubii-o-malzenstwie-chrzescijanskim",
      "first_published": "2009-01-14",
      "series": null
    },
    {
      "title": "O znaczeniu rekolekcji zamkniętych",
      "subtitle": null,
      "slug": "o-znaczeniu-rekolekcji-zamknietych",
      "url": "https://www.kolczanksiazek.pl/pius-xi/o-znaczeniu-rekolekcji-zamknietych",
      "first_published": "2003-01-01",
      "series": null
    },
    {
      "title": "Vigilanti cura. O filmie",
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      "slug": "vigilanti-cura-o-filmie",
      "url": "https://www.kolczanksiazek.pl/pius-xi/vigilanti-cura-o-filmie",
      "first_published": "2002-01-01",
      "series": null
    },
    {
      "title": "Mit brennender Sorge. O położeniu Kościoła w III Rzeszy",
      "subtitle": null,
      "slug": "mit-brennender-sorge-o-polozeniu-kosciola-w-iii-rzeszy",
      "url": "https://www.kolczanksiazek.pl/pius-xi/mit-brennender-sorge-o-polozeniu-kosciola-w-iii-rzeszy",
      "first_published": "2002-01-01",
      "series": null
    },
    {
      "title": "Divini Redemptoris",
      "subtitle": null,
      "slug": "divini-redemptoris",
      "url": "https://www.kolczanksiazek.pl/pius-xi/divini-redemptoris",
      "first_published": "2000-01-01",
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}