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Literaturverzeichnis
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..  [Cyt] Cython, http://www.cython.org/.

..  [Dive] Dive into Python, online frei verfügbar unter
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..  [GAP] The GAP Group, GAP - Groups, Algorithms, and
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..  [GAPkg] GAP Packages,
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..  [GP] PARI/GP, http://pari.math.u-bordeaux.fr/.

..  [Ip] The IPython shell, http://ipython.scipy.org/.

..  [Jmol] Jmol: an open-source Java viewer for chemical
    structures in 3D, http://www.jmol.org/.

..  [Mag] Magma, http://magma.maths.usyd.edu.au/magma/.

..  [Max] Maxima, http://maxima.sf.net/.

..  [NagleEtAl2004] Nagle, Saff, and Snider.
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..  [Py] The Python language, http://www.python.org/
    Reference Manual, http://docs.python.org/ref/ref.html/.

..  [PyDev] Python Developer's Guide
    https://docs.python.org/devguide/.

..  [Pyr] Pyrex, http://www.cosc.canterbury.ac.nz/~greg/python/Pyrex/.

..  [PyT] The Python Tutorial, http://docs.python.org/tutorial/.

..  [SA] Sage web site, http://www.sagemath.org/.

..  [Si] \W. Decker, G.-M. Greuel, G. Pfister, and
    H. Schönemann. Singular 3.3.1. A Computer Algebra System for
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..  [SJ] William Stein, David Joyner, Sage: System for Algebra and
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