Condit, Richard S.; Robinson, Douglas W.; Ibáñez, Roberto D.; Aguilar, Salomo´n; Sanjur, Amelia; Martinez, Raul; Stallard, Robert F.; Garcia, Tomas; Angehr, George R.; Petit, Lisa J.; Wright, S. Joseph; Robinson, Tara Rodden; Heckadon-Moreno, Stanley
(2001)