Ramírez , D. E., and J. A. Calvache. “Design and Performance Evaluation of the "iTIVA" Algorithm for Manual Infusion of Intravenous Anesthetics Based on Effect-Site Target”. Colombian Journal of Anesthesiology, Vol. 44, no. 2, Apr. 2016, pp. 105–113, https://www.revcolanest.com.co/index.php/rca/article/view/456.