| ||||| Éléments de symmétrie : animations |
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EPFL: http://escher.epfl.ch/eCrystallography/,
http://escher.epfl.ch/escher/ |
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Symmetry ressources @ Otterbein University: http://symmetry.otterbein.edu,
http://symmetry.otterbein.edu/gallery/index.html |
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University of Texas at Austin: http://capsicum.me.utexas.edu/ChE386K/ |
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VIBRATE: http://dx.doi.org/10.1107/S0021889809040424 |
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Bilbao server: http://www.cryst.ehu.es |