@article {raviv2007hierarchical,
	title = {Hierarchical bionanotubes formed by the self assembly of microtubules with cationic membranes or polypeptides},
	journal = {Journal of Applied Crystallography},
	volume = {40},
	year = {2007},
	pages = {s83{\textendash}s87},
	publisher = {International Union of Crystallography},
	author = {Raviv, Uri and Needleman, Daniel J and Ewert, Kai K and Safinya, Cyrus R}
}
