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\documentclass{standalone} \usepackage{tikz} % macros to draw graphene lattices \usepackage{graphene} \begin{document} \begin{tikzpicture} \graphene{(0,0)}{} \sitelattice{a}{(0,0)}{} \sitelattice{b}{(0,0)}{} \end{tikzpicture} \end{document}