{
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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": "Michał Leszczyński",
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      "title": "Kampania zadnieprzańska 1663–1664. Ostatnia wyprawa Rzeczypospolitej na Moskwę",
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    {
      "title": "Jej i Jego",
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      "first_published": "2024-12-23",
      "series": null
    },
    {
      "title": "Kampania Franklin – Nashville 18 IX – 27 XII 1864",
      "subtitle": null,
      "slug": "kampania-franklin-nashville-18-ix-27-xii-1864",
      "url": "https://www.kolczanksiazek.pl/michal-leszczynski/kampania-franklin-nashville-18-ix-27-xii-1864",
      "first_published": "2022-06-01",
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    {
      "title": "Dien Bien Phu 1954",
      "subtitle": null,
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    {
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    {
      "title": "Przygody Dzielnego Wojaka Fizyka",
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      "url": "https://www.kolczanksiazek.pl/michal-leszczynski/przygody-dzielnego-wojaka-fizyka",
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