(1)
Spielberger, C.; Buela-Casal, G.; Agudelo, D.; Carretero-Dios, H.; Santolaya, F. Analysis of Convergent and Discriminant Validity of the Spanish Experimental Version of the State-Trait Depression Questionnaire (ST-DEP). Actas Esp Psiquiatr 2005, 33, 374-382.