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文档贡献
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除了 William Stein 外，Gary Zablackis 也对本文档做出了贡献。

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    [GAP] {GAP4} The GAP Group,
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    [G] {G} Solomon Golomb, *Shift register sequences*, Aegean Park
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    [Sing] {GPS05} G.-M. Greuel, G. Pfister, and H. Schönemann.
    Singular 3.0. A Computer Algebra System for Polynomial
    Computations. Centre for Computer Algebra, University of
    Kaiserslautern (2005). https://www.singular.uni-kl.de

    [Pari] {PARI2} PARI/GP, version 2.1.5, Bordeaux, 2004,
    https://pari.math.u-bordeaux.fr/

    [M] {M} James L. Massey, *Shift-Register Synthesis and BCH Decoding*,
    IEEE Trans. on Information Theory, vol. 15(1), pp. 122-127, Jan
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    [SAGE] {SJ} William Stein, David Joyner, SAGE: System for Algebra
    and Geometry Experimentation, Comm. Computer Algebra 39(2005)61-64.
    (SIGSAM Bull. June 2005) https://sagemath.org/
    https://github.com/sagemath/sage/issues/
