1. On the covariance structure of earnings and hours changes;Abowd;Econometrica,1989
2. Albarrán P 2004 Modelos Econométricos de Varianza Condicional para Datos de Panel
3. Alvarez J Arellano M 2004 Robust likelihood estimation of dynamic panel data models
4. Discrete choices with panel data;Arellano;Investigaciones Económicas,2003a