Add link to an alternative generator with a long-period.
diff --git a/Doc/library/random.rst b/Doc/library/random.rst
index cab6d2f..e50e536 100644
--- a/Doc/library/random.rst
+++ b/Doc/library/random.rst
@@ -253,3 +253,7 @@
Modeling and Computer Simulation Vol. 8, No. 1, January pp.3-30 1998.
+ `Complementary-Multiply-with-Carry recipe
+ <http://code.activestate.com/recipes/576707/>`_ for a compatable alternative
+ random number generator with a long-period and comparatively simple update
+ operations.