(3Odjd GdQSGFd GdLGeYjI (B: (3GdJi GLGRJgG cdjI GdGOGH efP fTCJgG hMJi fgGjI YGe (B1990 / s - (3MTeJ bGSes; (3fGUQ eMeO YHOGdQMefs; (3gGTe aQMGJ SjOs ((3GdbGgQI (B: s (3LGeYI GdbGgQI (B- (3cdjI GdGOGH , s, 1992)
Keywords: (3GdLGeYGJ hGdcdjGJs; (3GdQSGFd GdLGeYjIs; (3GdagGQSs; (3cdjI GdGOGHs