@article {IOPORT.03795859,
    author       = {Calderbank, Robert and Wales, David B.},
    title        = {Multiplying vectors in binary quadratic residue codes.},
    year         = {1982},
    journal      = {SIAM Journal on Algebraic and Discrete Methods},
    volume       = {3},
    issn         = {0196-5212},
    pages        = {43-55},
    publisher    = {Society for Industrial and Applied Mathematics, Philadelphia, PA},
    doi          = {10.1137/0603005},
    identifier   = {03795859},
}