(3GOjGf GdYQH bHd GdGSdGe hhLggG GdMVGQj hGdGLJeGYj (B/ s - (3OGhO, LQLS OGhO, s ((3HjQhJ, dHfGf (B: s (3eLO GdeDSSI GdLGeYjI ddOQGSGJ hGdfTQ, (B402 (3g`(B. = 1981.s, 1981)
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B385-392.s
Keywords: (3GdOjGfGJ GdbOjeIs -- (3THg GdLRjQI GdYQHjI(B.s; (3GdOjGfGJs -- (3JGQjN(B.s