The Encyclopedia Herald of Ukraine
    Annual for encyclopedia studies. Published by Institute of Encyclopedic Research, National Academy of Sciences of Ukraine, since 2009
    ISSN: 2706-9990 (print)
    ISSN: 2707-000X (online)
    DOI: 10.37068/evu

    Keyword: “fourth state of matter”

    Ключове слово: “fourth state of matter”