Original: Note 2: it is also quite possible on the English Wikipedia that the transliterated versions may match some equivalent common Slavic surnames of Ukrainians, Belorusians, Bulgarians, and others.
Simplified: Note 2: it is also very possible on the Simple English Wikipedia that the spelled versions of the names can be the same as some equivalent common Slavic surnames of Ukranians, Belorusians, Bulgarians, and others.