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Labouriau IS, Pinho EM. Projected wallpaper patterns. In: Real and complex singularities. Birkhäuser, Basel; 2007. 2. p. 209-217p. (Trends Math.).Edit

Labouriau IS, Pinho EM. Symmetries of projected wallpaper patterns. Math. Proc. Cambridge Philos. Soc.. 2006;141:421-441.Edit

Pinho EM, Labouriau IS. On the projection of functions invariant under the action of a crystallographic group. J. Pure Appl. Algebra. 2014;218:37-51.Edit