1. Baicheva Ts., Dodunekov S.M., Kötter R. (2002): On the performance of the ternary [13,7,5] quadratic-residue code. IEEE Trans. Inform. Theory 48(2): 562–564
2. Blahut R.E. (1993): The Theory and Practice of Error Control Codes. Addison-Wesley, Reading, MA, USA
3. Dodunekov S.M. (1985): The optimal double-error correcting codes of Zetterberg and Dumer-Zinovev are quasiperfect. C. R. Acad. Bulgare Sci. 38(9): 1121–1123
4. Dodunekov S.M. (1986): Some quasiperfect double error correcting codes. Prob. Control Inform. Theory/Problemy Upravlen. Teor. Inform. 15(5): 367–375
5. Dumer I.I., Zinoviev V.A. (1978): Some new maximal codes over GF(4). Problemy Peredachi Informatsii 14(3): 24–34