(NpLANETA L@DEJ(B. (NmALENXKIJ PRINC (B/s - (NsENT(B-(NeKZ@PER)QÆ(B, (NaNTUAN DE(B.s)E ((NlXW)QÆW (B:s)E (NwI]A [K(B.,s, 1981)