Khalil, H. K. (2002). Nonlinear systems (3a. ed.). Prentice-Hall.
Cita Chicago (17th ed.)Khalil, Hassan K. Nonlinear Systems. 3a. ed. Upper Saddle River: Prentice-Hall, 2002.
Cita MLA (9th ed.)Khalil, Hassan K. Nonlinear Systems. 3a. ed. Prentice-Hall, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.