(NsESTRI r)QÆ^INSXKÆ (B:s)E (NROMAN(B.s (NkN(B. 2 /s - (Nw)QÆLXDE(B, æ(NRINA(B.s)E; (Nw)QÆLXDE(B, æ(NRINAs)E ((NkI)QÇW (B:s)E (NdN)QÆPRO(B,s)E, 1977)