(3GdHOGjI hGdfgGjI (B/ s - (3GHf cKjQ GdbQTi (B: (3YeGO GdOjf GHhGdaOGA GSeGYjd Hf YeQ Hf cKjQ Hf VhA GdHUQi GdOeTbis ((3HjQhJ (B: s (3ecJHI GdeYGQa , s, 1990)
Keywords: (3GdGSdGes; (3GdJGQjN GdGSdGeis; (3GfJTGQ GdGSdGes; (3GdMVGQI GdGSdGejIs; (3GdGSdGe (B- (3JQGLes