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Figure 4
M. C. Escher (1898–1972) tessellations: (a) fish and bird (https://artdocents.wordpress.com/tag/mc-escher/), and (b) fish and horse (https://www.pinterest.com/pin/397794579557584028/).

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
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ISSN: 2052-5206
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