1. Schwilden H, Stoekel H, Schuttler J: Closed-loop feedback control of propofol anaesthesia by quantitative EEG analysis in humans. Br J Anaesth 62: 290–296, 1989
2. Schwilden H, Schüttler J, Stoekel H: Closed-loop feedback control of methohexital anesthesia by quantitative EEG analysis in humans. Anesthesiology 67: 341, 1987
3. Struys M, Smet T, Audenaert S, Versichelen L, Mortier E, Roily G: Development of a closed loop system for propofol using bispectral analysis and a patient-individual pharmacokinetic-dynamic (PK-PD) model. Preliminary results. Brit J of Anaesthesia 78Suppl 1: 23, Abs A.76, 1997
4. Kenny GNC, Davies FW, Mantzardis H, Fisher AC: Closed-loop control of anesthesia. Anesthesiology 77((3)): A328, 1992
5. Kruger-Thiemer E: Continuous intravenous infusion and multicompartment accumulation. Eur J Pharmacol 4: 317–324, 1968