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\bibitem{SobrinoFernandez_etal2015} {\textquotedblleft}\textit{Self-assembly of Janus particles into helices with tunable pitch}{\textquotedblright}. Sobrino Fernandez M, Misko VR, Peeters FM, Physical review : E : statistical, nonlinear, and soft matter physics \textbf{92}, 042309 (2015).   http://doi.org/10.1103/PhysRevE.92.042309

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