Link from step-47 to step-82.

diff --git a/examples/step-47/doc/intro.dox b/examples/step-47/doc/intro.dox
index eb69f983ea4d1a9e3b541d8b7ec8d545a7cad30c..e93577182b246cc5b67222a8e5d51fd224ab039d 100644 (file)
--- a/examples/step-47/doc/intro.dox
+++ b/examples/step-47/doc/intro.dox
@@ -216,6 +216,10 @@ this scheme for the biharmonic equation is typically called the $C^0$ IP
 (or C0IP) method, since it uses $C^0$ (continuous but not continuously
 differentiable) shape functions with an interior penalty formulation.
 
+It is worth noting that the C0IP method is not the only one that has
+been developed for the biharmonic equation. step-82 shows an
+alternative method.
+
 
 <h3> Derivation of the C0IP method </h3>