diff --git a/README.md b/README.md
index 82bbe03dc..491e6592d 100644
--- a/README.md
+++ b/README.md
@@ -81,7 +81,8 @@ Read [the Chronicle Map data store design overview](spec/2-design-overview.md) f
 
  - A document store. No secondary indexes.
  - A [multimap](https://en.wikipedia.org/wiki/Multimap). Using a `ChronicleMap<K, Collection<V>>`
- as multimap is technically possible, but often leads to problems. Developing a proper multimap with
+ as multimap is technically possible, but often leads to problems (see [a StackOverflow answer](
+ http://stackoverflow.com/a/36486525/648955) for details). Developing a proper multimap with
  Chronicle Map's design principles is possible, [contact us](mailto:sales@chronicle.software) is
  you consider sponsoring such development.