{
  "type": "author",
  "site": {
    "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.",
  "name": "Gabriel Rusin",
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  "markdown": "https://www.kolczanksiazek.pl/gabriel-rusin.md",
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  "languages_count": 1,
  "countries_count": 1,
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    {
      "title": "Super sudoku dla dzieci 9-12 lat",
      "subtitle": null,
      "slug": "super-sudoku-dla-dzieci-9-12-lat",
      "url": "https://www.kolczanksiazek.pl/gabriel-rusin/super-sudoku-dla-dzieci-9-12-lat",
      "first_published": "2026-03-26",
      "series": null
    },
    {
      "title": "Super sudoku dla dzieci 6-9 lat",
      "subtitle": null,
      "slug": "super-sudoku-dla-dzieci-6-9-lat",
      "url": "https://www.kolczanksiazek.pl/gabriel-rusin/super-sudoku-dla-dzieci-6-9-lat",
      "first_published": "2026-03-26",
      "series": null
    },
    {
      "title": "Super sudoku dla dzieci 4-6 lat",
      "subtitle": null,
      "slug": "super-sudoku-dla-dzieci-4-6-lat",
      "url": "https://www.kolczanksiazek.pl/gabriel-rusin/super-sudoku-dla-dzieci-4-6-lat",
      "first_published": "2026-01-01",
      "series": null
    },
    {
      "title": "Super sudoku dla dzieci 12+ lat",
      "subtitle": null,
      "slug": "super-sudoku-dla-dzieci-12-lat",
      "url": "https://www.kolczanksiazek.pl/gabriel-rusin/super-sudoku-dla-dzieci-12-lat",
      "first_published": "2026-01-01",
      "series": null
    },
    {
      "title": "Matematyka w krzyżówkach... zakres do 100",
      "subtitle": null,
      "slug": "matematyka-w-krzyzowkach-zakres-do-100",
      "url": "https://www.kolczanksiazek.pl/gabriel-rusin/matematyka-w-krzyzowkach-zakres-do-100",
      "first_published": "2024-06-12",
      "series": null
    },
    {
      "title": "Matematyka w krzyżówkach. Mnożenie i dzielenie w zakresie 50",
      "subtitle": null,
      "slug": "matematyka-w-krzyzowkach-mnozenie-i-dzielenie-w-zakresie-50",
      "url": "https://www.kolczanksiazek.pl/gabriel-rusin/matematyka-w-krzyzowkach-mnozenie-i-dzielenie-w-zakresie-50",
      "first_published": "2024-01-01",
      "series": null
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}