(NsO^INENIQ(B:s (NW (B2-(NH T(B. : (NPER(B. (NS NEM(B./s (Nt(B. 2s - (NnIC[E(B, (NfRIDRIHs; (NnIC[E(B, (Nf(B.s (NfRIDRIHs ((Nm(B.:s (NmYSLXs, 1990)