From ab482185dde30b788f38174b9dd2efded3ba5c75 Mon Sep 17 00:00:00 2001
From: Chandu Bolisetti <chandu774@gmail.com>
Date: Tue, 20 Nov 2018 13:33:03 -0700
Subject: [PATCH] Added references. Refs #174.

---
 doc/content/bib/mastodon.bib | 20 +++++++++++++++++---
 doc/content/news/2018-10.md  |  3 ++-
 2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/doc/content/bib/mastodon.bib b/doc/content/bib/mastodon.bib
index 7c0bb8dfd7..243809e0e2 100644
--- a/doc/content/bib/mastodon.bib
+++ b/doc/content/bib/mastodon.bib
@@ -1,10 +1,24 @@
-@misc{sassiuser2006,
+@article{sassiuser2006,
   author={Farhang Ostadan},
-  title={SASSI - A System for Analysis of Soil Structure Interaction - User's Manual},
-  journal={University of California, Berkeley, California}
+  title={{SASSI - A System for Analysis of Soil Structure Interaction - User's Manual}},
+  journal={University of California, Berkeley, California},
   year={2006}
 }
 
+@misc{opensees2009,
+  author={S.~Mazzoni and McKenna.~F and Scott.~M.~H and Fenves.~G.~L},
+  title ={OpenSees: Open System for Earthquake Engineering Simulation},
+  publisher ={Pacific Earthquake Engineering Research Center (PEER), University of California},
+  year ={2009}
+ }
+
+@article{EPS,
+  author={Earthquake Protection Systems (EPS)},
+  title={},
+  journal={http://www.earthquakeprotection.com/single_pendulum_bearing.html},
+  year={2012}
+ }
+
 @misc{abaqus2016,
   author={{Dassault Systèmes}},
   title={ABAQUS - Finite Element Analysis Software, v2016},
diff --git a/doc/content/news/2018-10.md b/doc/content/news/2018-10.md
index ca326f8425..af77da6cb0 100644
--- a/doc/content/news/2018-10.md
+++ b/doc/content/news/2018-10.md
@@ -66,5 +66,6 @@ The DOE Natural Phenomena Hazards (NPH) meeting was held on the 23rd and 24th of
        caption=Illustration of risk-informed and risk-based design methodologies.
 !col-end!
 
-
 !row-end!
+
+!bibtex bibliography