finish updates and rerun

Author: OriolAbril

examples/mixture_models/dirichlet_mixture_of_multinomials.ipynb

@@ -228,6 +228,17 @@ @article{nowlan1992simplifying
   publisher={MIT Press}
 }
 
+@article{ohlssen2007flexible,
+  title={Flexible random-effects models using Bayesian semi-parametric models: applications to institutional comparisons},
+  author={Ohlssen, David I and Sharples, Linda D and Spiegelhalter, David J},
+  journal={Statistics in medicine},
+  volume={26},
+  number={9},
+  pages={2088--2112},
+  year={2007},
+  publisher={Wiley Online Library}
+}
+
 @inproceedings{roy2008npbayes,
   title={A stochastic programming perspective on nonparametric Bayes},
   author={Daniel M. Roy, Vikash Mansinghka, Noah Goodman and Joshua Tenenbaum},