1. R. H. STOLEN, in ‘Optical Fiber Telecommunications’, edited by S. E. Miller and A. G. Chynoweth (Academic, New York, 1979).
2. K. O. HILL, in ‘Fiber Optics — Advances in Research and Development’, edited by B. Bendow and S. J. Mitra (Plenum, New York, 1979).
3. L. F. MOLLENAUER, R. H. STOLEN and J. P. GORDON,Phys. Rev. Lett. 45 (1980) 1095.
4. L. F. Mollenauer and R. H. Stolen,Laser Focus (April 1982) 193.
5. Y. R. SHEN, ‘The Principles of Nonlinear Optics’ (Wiley, New York, 1984) Chap. 26.