meeting2017.md

@@ -14,5 +14,8 @@ IWR Heidelberg
  * Non-affine FE
  * topology and constraints (higher-order FE, H-div, etc.)
  * Paper
+ * Can we replace the HybridTreePath class by a more general HybridArray?
+   Such a HybridArray could then also be used, e.g., to index entries of a
+   MultitypeBlockVector.
 
 ## Protocol