Руската предложно-падежна система в речта на русите в българска езикова среда

This is a data-based study of the native speech production of Russians residing in Bulgaria, which reveals disturbed communicative competence. It is suggested that systematic investigations of this kind could throw some light on the mechanisms of language contact and language change (including diachrony). Such studies can also contribute to the theory of contrastive analysis of Bulgarian with other languages. Finally, certain inferences could be made concerning language teaching.