K. V. Voronov, V. O. Nikiforov, “A Dynamic Output Controller with Constant Perturbation Compensation”, Avtomat. i Telemekh., 2003, no. 2, 11–21; Autom. Remote Control, 64:2 (2003), 181–190
K. V. Voronov, O. I. Koroleva, V. O. Nikiforov, “Robust Control of Nonlinear Objects with Functional Uncertainties”, Avtomat. i Telemekh., 2001, no. 2, 112–121; Autom. Remote Control, 62:2 (2001), 269–277