On the covering radius of Z<sub>4</sub>-codes and their lattices.

Toru Aoki Philippe Gaborit Masaaki Harada Michio Ozeki Patrick Solé On the covering radius of Z<sub>4</sub>-codes and their lattices. 2162-2168 1999 45 IEEE Transactions on Information Theory 6 db/journals/tit/tit45.html#AokiGHOS99