???????, ????, ??? . 1977. ??? ??????? ?? ??????????? ?????????? ? ???????????? ? ????????? ? ????????? ???? {(On the problem of the category transitivity ? intransitivity in English and in Bulgarian)}. ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 2. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 92?113.