{
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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": 1,
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    {
      "title": "Contemporary Educational Challenges",
      "subtitle": null,
      "slug": "contemporary-educational-challenges",
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      "first_published": "2015-06-26",
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    {
      "title": "Tożsamości zbiorowe Białorusinów",
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    {
      "title": "Białorusini. Między Wschodem a Zachodem",
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      "url": "https://www.kolczanksiazek.pl/ryszard-radzik/bialorusini-miedzy-wschodem-a-zachodem",
      "first_published": "2013-04-22",
      "series": null
    },
    {
      "title": "Kim są Białorusini?",
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      "slug": "kim-sa-bialorusini",
      "url": "https://www.kolczanksiazek.pl/ryszard-radzik/kim-sa-bialorusini",
      "first_published": "2002-01-01",
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}