diff --git a/README.rst b/README.rst
index 04b71f4a..3f602363 100644
--- a/README.rst
+++ b/README.rst
@@ -1,12 +1,14 @@
 piker
 -----
-Anti-fragile trading gear for hackers, scientists, stay-at-home quants and underpants warriors.
+Anti-fragile_ trading gear for hackers, scientists, stay-at-home quants and underpants warriors.
 
 |pypi| |travis| |versions| |license| |docs|
 
 .. |travis| image:: https://img.shields.io/travis/pikers/piker/master.svg
     :target: https://travis-ci.org/pikers/piker
 
+.. _Anti-fragile: https://www.sciencedirect.com/science/article/pii/S1877050916302290
+
 Install
 *******
 ``piker`` is currently under heavy alpha development and as such should