Kadykalo, Andrii, Lviv Polytechnic National University
Karwasz, Grzegorz, Wydział Fizyki, Astronomii i Informatyki Stosowanej Uniwersytet Mikołaja Kopernika
Karwasz, Grzegorz, Division Didactics of Physics, Faculty of Physics, Astronomy and Applied Informatics, University Nicolaus Copernicus, Toruń
Kasak, Enn, University of Tartu
Kemp, Kenneth W., University of St. Thomas St. Paul, Minnesota
Kull, Anne, University of Tartu
Kwakye, Ahenkora Siaw, University of Tartu

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ISSN 2300-7648 (print)
ISSN 2353-5636 (online)