Massimo Nespolo, Bernd Souvignier, Berthold Stöger. Groupoid description of modular structures.
Acta Crystallographica Section A Foundations and Advances, International Union of Crystallography, 2020, 76 (3), pp.334-344.
⟨10.1107/S2053273320000650⟩.
⟨hal-02563857⟩