EN
The analysis deals with typologically relevant phenomena on phonological level of the Upper Sorbian and Lower Sorbian languages. Both standard languages (and standard Polish) belong to the extreme consonantal type with undeveloped vocalism (7 vowels) and developed consonantism (32, 35 consonants). The standard Slovak represents a transient type between extreme vocalic and extreme consonantal types because the proportion of vowels (15) and consonants (27) is relatively balanced.