Is_Bidirected

<BODY bgcolor="#ffeee0" text="#000000" link="#9944EE" vlink="#FF0000" alink="#00ff00">  <IMG WIDTH="37" HEIGHT="24" ALT="next" SRC="next_g.png"> <IMG WIDTH="26" HEIGHT="24" ALT="up" SRC="up_g.png"> <IMG WIDTH="63" HEIGHT="24" ALT="previous" SRC="prev_g.png"> <BR> <BR> <BR> <P> Sorry, this requires a browser that supports frames! <BR> Try <A HREF="Is_Bidirected_ct.html">Is_Bidirected_ct.html</A> instead.</P> <HR>