@article {Деспотова1981,
	title = {Анализ на основния тон Fo при дългата гласна [i:] и при кратката гласна [I]},
	journal = {Съпоставително езикознание / Сопоставительное языкознание / Contrastive linguistics},
	volume = {6},
	year = {1981},
	pages = {48{\textendash}53},
	abstract = {The movement of the basic tone Fo is considered by some phoneticians as a significant, though insufficiently investigated field which can account for native language interference and the presence of a foreign accent. The analysis aims at establishing the objective change of that quantity which is registered through its absolute values in the so-called long and short vowels. The object of analysis is a contrastive study of the data obtained from one and the same phonological material, pronounced by English and Bulgarian informants; the ultimate aim is to check M. Durand{\textquoteright}s statement about the linguistic significance of the basic tone in the differentiation between the English long and short vowels.},
	author = {Деспотова, Вера Г.}
}
@article {Деспотова1978,
	title = {Акустичен анализ на английските фонеми [i:] и [I], произнесени от българи},
	journal = {Съпоставително езикознание / Сопоставительное языкознание / Contrastive linguistics},
	volume = {3},
	year = {1978},
	pages = {28{\textendash}36},
	abstract = {ue to fundamental differences between the phonological systems of Bulgarian and English, 37 Bulgarians tend to disregard the qualitative-quantitative distinction between the English long and short vowel phonemes, especially between the long [i:] and the short [I] phonemes. Bulgarians articulate a different [i] sound which is easily detected perceptually and is treated as a {\quotedblbase}foreign{\textquotedblleft} accent by English native speakers. The purpose of this analysis is to determine the acoustic character of that phenomenon. The analysis is confined to monosyllabic words of the consonant-vowel [CV], and consonant-vowel-consonant [CVC] types. The investigation is based on data from the traditional spectrogram which reveals the F-pattern and the quantitative dimensions of the segments. The results of this analysis are compared to the F-pattern of the Bulgarian [i] sound, determined under similar conditions by D. Tilkov in 1968.},
	author = {Деспотова, Вера}
}
