Nimalsiri Pinnawala Asha Rao Cocyclic Simplex Codes of Type alpha Over mmb Z<sub>4</sub> and mmb Z<sub>2</sub><sup>s</sup>. 2165-2169 2004 50 IEEE Trans. Inf. Theory 9 db/journals/tit/tit50.html#PinnawalaR04 https://doi.org/10.1109/TIT.2004.833354