diff --git a/Bibliography.md b/Bibliography.md
index e13fa39..5a62c90 100644
--- a/Bibliography.md
+++ b/Bibliography.md
@@ -21,6 +21,13 @@ Here are some papers that are potentially of interest.
 
 [Some thoughts on Collision Attacks in the Hash Functions MD5, SHA-0 and SHA-1](http://eprint.iacr.org/2005/391) general musings about design of secure hash functions
 
+## Erasure Coding
+
+<http://www.cs.utk.edu/~plank/plank/gflib/index.html> : A tutorial and some
+software for erasure coding. This isn't the software that we use because it
+isn't as fast as Rizzo's implementation, but the tutorial is nice.
+
+
 ## Local Filesystems
 
 [Model-Based Failure Analysis of Journaling File Systems](http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.78.8911) [PDF](http://www.cs.wisc.edu/wind/Publications/sfa-dsn05.pdf) compares ext3, reiserfs, and JFS under conditions of latent sector errors.  (Impatient people: read the Introduction and look at the table on page 9.)