Jim Lesurf. Signals look like noise!. Information and Measurement, 2nd ed. [2007-11-10]. (原始内容存档于2016-12-28).
ucl.ac.uk
cs.ucl.ac.uk
Saleem Bhatti. Channel capacity. Lecture notes for M.Sc. Data Communication Networks and Distributed Systems D51 -- Basic Communications and Networks. [2007-11-10]. (原始内容存档于2007-08-21).
web.archive.org
Saleem Bhatti. Channel capacity. Lecture notes for M.Sc. Data Communication Networks and Distributed Systems D51 -- Basic Communications and Networks. [2007-11-10]. (原始内容存档于2007-08-21).
Jim Lesurf. Signals look like noise!. Information and Measurement, 2nd ed. [2007-11-10]. (原始内容存档于2016-12-28).