Liao X. Absolute stability of nonlinear control systems / X. Liao, P. Yu, 2008 r=on-line. - Текст : электронный.
Materials science forum. Vol. 579 : Advances in nanostructured materials processed by severe plastic deformation / ed.: X. Liao, Y. Zhao, 2008. - V, 154 p. с. - Текст : непосредственный.