(NgEORG)QÆJ wQ^ESLAWOWI^ qKUTOWI^ (B/s)E - (NbEL)QÆ^KO(B, (N`(B. (Nw(B.s)E ((NkI)QÇW (B:s)E (NmISTECTWO(B,s, 1968)