Jürgen Bierbrauer Daniele Bartoli Giorgio Faina Stefano Marcugini Fernanda Pambianco Yves Edel The structure of quaternary quantum caps. 733-747 2014 72 Des. Codes Cryptogr. 3 https://doi.org/10.1007/s10623-013-9796-5 db/journals/dcc/dcc72.html#BierbrauerBFMPE14
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