1. §2.2.2, ITU Recommendation G.783, 1990
2. §2.3.1, ITU Recommendation G.783, 1990
3. Appendix 1, ITU Recommendation G.958, 1990
4. ‘Performance comparison between CRC and bit interleaved parity’, Contribution to T1 standard project T1X1, 1986 4/86–419