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Figure 4
The root invariant RI(Λ) from Definition 3.1[link] used for mapping crystal structures from the CSD in this paper is a continuous and complete isometry invariant of all two-dimensional lattices.

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ISSN: 2053-2733
Volume 79| Part 1| January 2023| Pages 1-13
https://doi.org/10.1107/S2053273322010075
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