eng National Academy of Sciences of Ukraine, Institute of Encyclopedic Research The Encyclopedia Herald of Ukraine 2706-9990 2707-000X 2014-12-16 4-5 106 112 10.37068/evu.4-5.13 article Casuses and collisions in spelling of Ukrainian Казуси і колізії українського правопису Liudmyla Riabets https://evu.encyclopedia.kyiv.ua/article/28