CAMPILLO-CORTES, C.; FLORES-REYES, H.; DÁVILA-PÉREZ, C.; SILVA-HERZOG, D.; MÉNDEZ-GONZÁLEZ, V.; POZOS-GUILLÉN, A. Effectiveness of three electronic apex locators to determine root canal working length. Journal of Oral Research, v. 4, n. 4, p. 249-254, 5 jun. 2015.