{
  "type": "author",
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    "url": "https://www.kolczanksiazek.pl"
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  "languages_count": 1,
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    {
      "title": "Józio. Złota Iskierka Szczęścia",
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      "url": "https://www.kolczanksiazek.pl/piotr-marcin-kraska/jozio-zlota-iskierka-szczescia",
      "first_published": "2026-01-01",
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    {
      "title": "13 do potęgi",
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      "slug": "13-do-potegi",
      "url": "https://www.kolczanksiazek.pl/piotr-marcin-kraska/13-do-potegi",
      "first_published": "2024-11-15",
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}