Converted by
Mathematica
March 15, 2002
![[Graphics:../Images/index_gr_18.gif]](../Images/index_gr_18.gif)
![[Graphics:../Images/index_gr_19.gif]](../Images/index_gr_19.gif)
![[Graphics:../Images/index_gr_20.gif]](../Images/index_gr_20.gif)
![[Graphics:../Images/index_gr_21.gif]](../Images/index_gr_21.gif)