" (3eYLe CdaGX GdbQBf GdcQje (B" (3WHYI efbMI (B" (3GdLRA GdKGfi (B" s " (3ef GdWGA Edi GdjGA (B"s (3GdLRA GdKGfi s ((3eLeY GddZI GdYQHjI LeghQjI eUQ GdYQHjI s (3GdEOGQI GdYGeI ddeYLeGJ hEMjGA GdJQGK s, 1990)