[1] Hammons  A  R, Kumar Jr P V, Calderbank A R,  et al. The Z₄ linearity of Kerdock, Preparata, Goethals and related codes. IEEE  Trans Inform Theory, 1994, 40: 301--319

[2] Tarokh  V, Seshadri  N, Calderbank  A  R. Space-time codes for high data rate wireless communication: performance criterion and construction. IEEE Trans Inform  Theory, 1998, 44: 744--765

[3] Liu  Y, Fitz  M  P, Takeshiti  O Y. A rank criterion for QAM space-time codes. IEEE Trans Inform Theory, 2002, 48: 3062--3079

[4] Gamal H  EI, Hammons  A  R, Liu  Jr  Y, et al. On the design of space-time and space-frequency codes for MIMO frequency-selective fading channels. IEEE Trans Inform Theory, 2003, 49: 2277--2292

[5] Dinh  H  Q,  LÖpez-Permouth  S  R. Cyclic and negacyclic codes over finite chain rings. IEEE Trans Inform Theory, 2004, 50: 1728--1744

[6] Kanwar  P, LÓpez-Permouth  S R. Cyclic codes over the integers modulo pm. Finite Fields and Their Applications, 1997, 44: 334--352

[7] Qian  J  F, Zhang  L N,  Zhu  S  X. Constantacyclic and cyclic codes over F₂+uF₂+u²F₂. IEICE Trans  on Fundamentals, 2006, E89-A: 1863--1865

[8] Shi  M  J, Zhu S X. Cyclic codes over the ring Z_p² of length p^e. Journal of Electronics (China), 2008, 25: 636--640

[9] Dougherty  S T, Shiromoto  K. MDR codes over Z_k. IEEE Trans Inform Theory, 2000, 46: 265--269

[10] Dougherty S T, Harada  M, Solé  P. Self-dual codes over rings and the Chinese remainder theorem. Hokkaido Math Journal, 1999, 28: 253--283

[11]  Park  Y H. Modular independence and generator matrices for codes over Z_m. Des  Codes and Cryp, 2009, 50: 147--162

[12] Zhu  S X, Shi  M  J. The rank of cyclic and negacyclic codes over the finite ring R. Journal of Electronics (China), 2008, 25: 97--101

[13]  Wood  J. Duality for modules over finite rings and applications to coding theory. Amer  J Math, 1999, 121: 555--575