1. J. Bierbrauer, Direct constructions of additive codes, downloadable manuscript from http://www.math.mtu.edu/jbierbra/.
2. On repeated-root cyclic codes
3. Byte-Oriented Error-Correcting Codes for Semiconductor Memory Systems
4. C. L. Chen and L. E. Grosbach, Fault-tolerant memory design in the IBM application system/400, digest of papers, The 21-st International Symposium on Fault-Tolerant Computing (1991) pp. 393?400.