Glynn, David GeraldGulliver, T. A.Gupta, M. K.2007-01-172007-01-172006Discrete Mathematics. 306(16):1871-18800012-365Xhttp://hdl.handle.net/2440/23816enKrawtchouk polynomials; linear transformations; non-linear codes; optimal codes; quantum codesLinear transformations on codesJournal article00200612060002401733000062-s2.0-33746703150