Original academic article (87 pgs): <a href="http://cblr.columbia.edu/wp-content/uploads/2016/07/2_2016.2_Geslevich-Packin-and-Lev-Aretz_FINAL.pdf" rel="nofollow">http://cblr.columbia.edu/wp-content/uploads/2016/07/2_2016.2...</a>