= Symmetry relations for space group 129 by International Union of Crystallography
{tag=Work by International Union of Crystallography}
https://onlinelibrary.wiley.com/iucr/itc/A1b/ch3o2v0001/sgtable3o2o129/
International Tables, symmetry-relations table for $P4/nmm$, number 129. It records the full Hermann-Mauguin symbol and origin changes, and includes the orthorhombic $Cmme$ subgroup relation. Affine operations for a particular atomic basis still require matching its supplied origin.
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