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    "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.",
  "title": "Lonely Heart",
  "subtitle": null,
  "slug": "lonely-heart",
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  "json": "https://www.kolczanksiazek.pl/mona-kasten/es/lonely-heart.json",
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  "authors": [
    {
      "name": "Mona Kasten",
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  "original_language": "de",
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      "code": "FR",
      "heading": "Romans"
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      "code": "FYT",
      "heading": "Proza w przekładzie"
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    {
      "code": "YF",
      "heading": "Literatura dla dzieci i młodzieży"
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    {
      "code": "YFM",
      "heading": "Opowieści o związkach dla dzieci i młodzieży"
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      "code": "YN",
      "heading": "Publikacje dla dzieci i młodzieży popularnonaukowe i ogólnoinformacyjne"
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    {
      "name": "Scarlet Luck",
      "slug": "scarlet-luck",
      "volume": 1,
      "url": "https://www.kolczanksiazek.pl/mona-kasten/seria/scarlet-luck"
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  "cover": "https://quivercdn.com/covers/planeta/mona-kasten/lonely-heart_978-95-0498-778-9.jpg?v=2026-04-16%2014%3A24%3A25",
  "description": "Lonely Heart — Planeta",
  "editions": [
    {
      "title": "Lonely Heart",
      "subtitle": null,
      "url": "https://www.kolczanksiazek.pl/mona-kasten/es/lonely-heart/9789504987789",
      "publisher": "Planeta",
      "publisher_series": [],
      "translators": [],
      "medium": "paper",
      "duration_seconds": null,
      "narrators": [],
      "illustrators": [],
      "cover_artists": [],
      "isbn": "978-95-0498-778-9",
      "pages": 416,
      "published": null,
      "language": "es_AR",
      "cover": "https://quivercdn.com/covers/planeta/mona-kasten/lonely-heart_978-95-0498-778-9.jpg?v=2026-04-16%2014%3A24%3A25"
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  ],
  "other_languages": [
    {
      "title": "Fragile Hearts - tome 1",
      "language": "fr_FR",
      "url": "https://www.kolczanksiazek.pl/mona-kasten/fr/fragile-hearts-tome-1"
    },
    {
      "title": "Lonely Heart",
      "language": "pl_PL",
      "url": "https://www.kolczanksiazek.pl/mona-kasten/lonely-heart"
    },
    {
      "title": "Lonely Heart – Ouve o teu coração",
      "language": "pt_PT",
      "url": "https://www.kolczanksiazek.pl/mona-kasten/pt/lonely-heart-ouve-o-teu-coracao"
    },
    {
      "title": "Самотнє серце",
      "language": "uk_UA",
      "url": "https://www.kolczanksiazek.pl/mona-kasten/uk/samotnie-sertse"
    }
  ],
  "characters": [],
  "chapters": []
}