Studies in Postural Control Systems Part II: Tendon Jerk Input. - Gyab C. Agarwal; Bradley M. Berman; Peter Löhnberg; Lawrence Stark (IEEE Trans. Syst. Sci. Cybern., 1970)

Studies in Postural Control Systems Part I: Torque Disturbance Input. - Gyab C. Agarwal; Bradley M. Berman; Lawrence Stark (IEEE Trans. Syst. Sci. Cybern., 1970)

Studies in Postural Control Systems Part III: A Muscle Spindle Model. - Gerald L. Gottlieb; Gyab C. Agarwal; Lawrence Stark (IEEE Trans. Syst. Sci. Cybern., 1970)