1. NIST Special Publication 811;T Ambler,2008
2. V.K. Bhargava, D. Haccoun, R. Matyas, P.P. Nuspl, Digital Communications by Satellite (Wiley, New York, 1981), p. 24
3. R.C. Dixon, Spread Spectrum Systems (Wiley, New York, 1976), p. 13
4. R.M. Gagliardi, Satellite Communications (Van Nostrand Reinhold, New York, 1984), pp. 17–20
5. R.W. Hamming, Coding and Information Theory, 2nd edn. (Prentice-Hall, Englewood Cliffs, 1986), p. 2