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Figure 16
Examples of tangled extended tetrahedra (level 2 with symmetry 23). Each structure is shown twice: projected down a twofold axis (top row) and a threefold axis (bottom row). Trivalent vertices are colored blue. The numbers are girths.

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ISSN: 2053-2733
Volume 78| Part 6| November 2022| Pages 498-506
https://doi.org/10.1107/S2053273322008750
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