1. T. Tamir: Integrated Optics, 2nd. Topics Appl. Phys., Vol. 7 (Springer, Berlin, Heidelberg, New York 1979) Chap. 1
2. S.E. Miller, A.G. Chynoweth: Optical Fiber Communications (Academic, New York 1979) Chap. 1
3. Digest of Technical Papers, Topical Meeting on Integrated Optics-Guided Waves, Materials, and Devices, Las Vegas, NV (Optical Society of America 1972)
4. Digest of Technical Papers, Topical Meeting on Integrated Optics, New Orleans, LA (Optical Society of America 1974)
5. R.D. Maurer: “Properties of Research Fibers for Optical Communications”, Digest of Technical Papers, OSA Topical Meeting on Integrated Optics, New Orleans, LA (21–24, January 1974)