1. ITU-T Telecommunication Standardization Sector of ITU, “Data Networks and Open System Communications, Open Systems Interconnection – Model and Notation, Recommendation ITU-T X.200,”,07/94E, http://www.itu.int/rec/dologin_pub.asp?id=T-REC-X.200-199407-I!!PDF-E&lang=e&type= items (29 June 2016).
2. Optical performance monitoring technique using delay tap asynchronous waveform sampling
3. I. P. Kaminow, T. Li, A. E. Willner, [Optical Fiber Telecommunications VB] Elsevier, 233–292 (2008).
4. NRZ-DPSK and RZ-DPSK Signals Signed Chromatic Dispersion Monitoring Using Asynchronous Delay-Tap Sampling;Zhao;J. Lightw. Technol,2009