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
O. I. Koroleva, V. O. Nikiforov, “Nonlinear robust control of a linear plant”, Avtomat. i Telemekh., 2000, no. 4, 117–128; Autom. Remote Control, 61:4 (2000), 647–657