1. B.A. Forouzan, Data Communications and Networking, 5th edn. (McGraw-Hill, New York, 2013)
2. The Fiber Optic Association, The FOA Reference for Fiber Optics, www.thefoa.org/tech/ref/OSP/jargon.html. Accessed June 2020
3. T. Anttalainen, V. Jaaskelainen, Introduction to Communication Networks (Artech House, 2015)
4. ITU-T Rec. X.210, Open Systems Interconnection Layer Service Definition Conventions (Nov. 1993)
5. R. Ramaswami, K.N. Sivarajan, G. Susaki, Optical Networks, 3rd edn. (Morgan Kaufmann, Burlington, 2009)