00000nz  a2200000n  4500
001  KSH1998006635
005  20040105232715
008  980429 n azknn|abn          |a a|a    | 
150  ▼a강결합 이론[强結合理論]▲
450  ▼wr▼i영어▼astrong coupling theory▲
550  ▼a섭동론[攝動論]▲
550  ▼a중간 결합 이론▲