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    {
      "title": "Java. 97 rzeczy, które powinieneś wiedzieć",
      "subtitle": null,
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      "url": "https://www.kolczanksiazek.pl/kevlin-henney/java-97-rzeczy-ktore-powinienes-wiedziec",
      "first_published": "2021-03-15",
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    {
      "title": "97 Things Every Java Programmer Should Know. Collective Wisdom from the Experts Kevlin Henney",
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}