Estonian words and names quoted in international publications from Soviet sources are often back-transliterations from the Russian transliteration. Examples are the use of я ("ya") for ä (e.g. Pyarnu (Пярну) for Pärnu), ы ("y") for õ (e.g., Pylva (Пылва) for Põlva) and ю ("yu") for ü (e.g., Pyussi (Пюсси) for Püssi). Even in the "Encyclopædia Britannica" one can find "ostrov Khiuma", where "ostrov" means "island" in Russian and "Khiuma" is back-transliteration from Russian instead of "Hiiumaa" ("Hiiumaa > Хийума(а) > Khiuma").