BIBCYT http://bibcyt.ucla.edu.ve/cgi-win/be_alex.exe?Ultimo&Nombrebd=BIBCYT UCLA - Biblioteca de Ciencias y Tecnologia Felix Morales Bueno De Wachter, Stefan P Principal Harris, Richard D.F. P Principal Tzavalis, Elias P Principal Panel data unit roots tests: The role of serial correlation and the time dimension p230-244, 15p