Index: detour/2_topo.html
===================================================================
--- detour/2_topo.html	(revision 903)
+++ detour/2_topo.html	(revision 904)
@@ -155,9 +155,9 @@
 	<li> when considering a new state, if a two-net introduces a new conflict with another
 	     two-net which it already had a conflict with in any parent state,
 	     check if the same object in the other two-net is affected as in the
-	     parent state; if so, this is likely an oscillation (TODO:
-	     draw an ex_ for this and link it from here!); this state is invalid
-	     and should be discarded
+	     parent state; if so, this is likely an oscillation (see section 4.1.7);
+	     this state is invalid and should be discarded
 	<li> always choose the first conflict on a two-net to resolve, since this
-	     may resolve further conflicts automatically; see section 4.1.2.
+	     may resolve further conflicts automatically (see section 4.1.2) plus
+	     keeps the decision tree smaller, removing redundant options.
 </ul>