References
- Berge P, Pomeau Y, Christian V. Order within chaos. Wiley & Sons, New York 1986
- Keilson S E, Teich M C, Khanna SM. Models of nonlinear vibration. I. Oscillator with bilinear resistance. Acta Otolaryngol (Stockh) Suppl 1989; 467: 241–248
- Teich M C, Keilson S E, Khanna SM. Models of nonlinear vibration. II. Oscillator with bilinear stiffness. Acta Otolaryngol (Stockh) Suppl 1989; 467: 249–256
- Thompson J MT, Stewart HB. Nonlinear dynamics and chaos. Wiley & Sons, New York 1986