Merge pull request #297 from spacejam/master

Added Borg paper.

distributed_systems/README.md

@@ -44,6 +44,8 @@
 
 * [Kafka: a Distributed Messaging System for Log Processing](http://research.microsoft.com/en-us/um/people/srikanth/netdb11/netdb11papers/netdb11-final12.pdf)
 
+* [Large-scale cluster management at Google with Borg](http://static.googleusercontent.com/media/research.google.com/en/us/pubs/archive/43438.pdf)
+
 * [Linearizability: A Correctness Condition for Concurrent Objects](http://cs.brown.edu/~mph/HerlihyW90/p463-herlihy.pdf)
 
 * [Making Reliable Distributed Systems in the Presence of Software Errors](http://www.erlang.org/download/armstrong_thesis_2003.pdf)