REFERENCES
- A. Scott, Active and Nonlinear Wave Propagation in Electronics. Wiley-Interscience (1970).
- K.E. Lonngren in Solitons in Action, edited by K.E. Lonngren & Scott A., Academic Press (1978).
- Yu.K. Bogatirev, N.P. Yampunn Izvestiya Vuzov—Radiophizika., 21, 9: 1978: 1268–1274. (in Russian).