(3aj GdTYQ h GdTYQGA (B/ s - (3GdjhJ, J (B. (3Ss; (3LOjO, eMeOs ((3OeTb (B:s (3OGQ cfYGf ddOQGSGJ h GdfTQ,s, 1991)
Keywords: (3GdTYQ GdYQHjs; (3GdJGQjN GdCOHjs; (3GdfbO GdCOHjs