(NpOEZ)QÆÇ (B:s)E (NPER(B. (NZ RUM(B. /s - (NtUDOR(B, (NaRGEZ)QÆ(B.s)E ((NkI)QÇW (B:s)E (NdN)QÆPRO(B,s)E, 1980)