@doctoralThesis{Andreeva_2007,
title={Zur Phonetik und Phonologie der Intonation in der Sofioter Varietät des Bulgarischen},
author={Andreeva, Bistra},
doi={http://dx.doi.org/10.22028/D291-23498},
subtitle={On the phonetics and phonology of intonation in the Sofia variety of Bulgarian},
year={2007}
}