* Richard D. Morey, Jeffrey N. Rouder, Michael S. Pratte, Paul L. Speckman. Using MCMC chain outputs to efficiently estimate Bayes factors. Journal of Mathematical Psychology, Volume 55, Issue 5, October 2011, Pages 368–378 http://dx.doi.org/10.1016/j.jmp.2011.06.004
  * On non-nested test: https://support.sas.com/kb/42/514.html
    * Clarke, K.A. (2001), "Testing Nonnested Models of International Relations: Reevaluating Realism," American Journal of Political Science, 45:3, 724-744.
    *Clarke, K.A. (2007), "A Simple Distribution-Free Test for Nonnested Hypotheses," Political Analysis, 15:3.
    *Clarke, K.A. and Signorino, C.S. (2010), "Discriminating Methods: Tests for Nonnested Discrete Choice Models," Political Studies, 58:2, 368-388.
    *Long, J. S.
    *Stokes, M. E., Davis, C. S., and Koch, G. G.
    *Vuong, Q. (1989), "Likelihood ratio tests for model selection and non-nested hypotheses," Econometrica, 57: 307-334.