$1!Q<!KH!0d!Yl!43!P'!KH!?z330 (B/ s - (Siegel, Joel G.); (Shim, Jae K.); $1!4"!58!TYs; $1!D$!:As; $1!5t!9o!:es ($1!T+!4I!<D (B: s $1!]>!]p!BX!4H(B, s, 1996)