\chapter{$B;29MJ88%(B}

\begin{description}

 \item $B@n>e0lO:(B $BCx(B, $B?tCM7W;;$N4pAC(B,  $BF|K\Bg3X86;RNO8&5f=j(B($BF|K\Bg3XM}9)3X(B
	     $BIt(B) $B7W;;J*M}65<<(B, 1997.

\end{description}