text_combined: k polgardi vowel harmony vowel harmony account terms governement optimality krisztina polgardi vowel harmony deals theoretical problems concerning phenomenon vowel harmony framework combining insights government phonology optimality theory lexical phonology study introduces motivates general framework examines three issues first concerns typology vowel harmony systems elementbased feature theory comprised three elements u supplemented property headedness account different types harmony second concerns domain harmony question handle disharmonicity proposed model third involves socalled neutral vowels e vowels system harmonic counterpart claimed behaviour neutral vowels predicted segmental makeup particular properties vowel systems involved polgrdi argues theory government phonology principlesand parameters approach needs supplemented constraint ranking certain types phenomena accounted otherwise since ranking shown necessary language variation exclusively expressed device notion param eters abandoned polgrdi also argues nonderivational version strict cycle condition also needs incorporated theory account socalled derived environment effects disharmonicity shown example 1998 xii 200 pp isbn 905569 046 5 paperback lot interna tional series 3 hil leiden university dissertation price individuals ordering directly publisher nlg 36 90 excl vat pp holland academic graphics hague http www hag nl rint sybesma holland academic graphics po box 53292 2505 ag hague netherlands fax 31 70 448 0177