Wilson, B.; Ghassemlooy, Z.; Darwazeh, I. (ed.): 'Analogue Optical Fibre Communications' (Telecommunications, 1995) DOI: IET Digital Library, https://digital-library.theiet.org/;jsessionid=2a7mdr2cevh6n.x-iet-live-01content/books/te/pbte032e