Gruyter, 2009, ISBN 978-3-11-018202-6 Landau, Ernestina; Lončarić, Mijo; Horga, Damir; Škarić, Ivo, Croatian, Handbook of the International Phonetic Association:
Europa: 118, 2003, ISBN 3-89586-727-6 Landau, Ernestina; Lončarić, Mijo; Horga, Damir; Škarić, Ivo, Croatian, Handbook of the International Phonetic Association: