???????, ????? ?. 1997. ???? ???????????? ??????????? ?? ?????????? ? ??????? (1996). ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 22. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 161?162.

???????, ????? ?. 1995. ???????????? ??????? ?? ???????? ?? ?????. ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 20. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 133?135.

???????, ????? ?. 1992. ???????? ?????????? ??????? ? ????????????. ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 17. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 103?105.

???????, ????? ?. 1990. ????? ?????????? ????? ?? ???????????????? ? ??????? ????. ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 15. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 117?118.