González-Val, Rafael (2010): What makes cities bigger and richer? New Evidence from 1990–2000 in the US. Unpublished.
González-Val, Rafael (2011): A nonparametric estimation of the local Zipf exponent for all US Cities. Unpublished.
González-Val, Rafael and Marcén, Miriam (2011): Breaks in the breaks: an analysis of divorce rates in Europe. Unpublished.
