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FarzadFard, Fahim; et al. (2008). "β-Sheet capping: Signals that initiate and terminate β-sheet formation". Journal of Structural Biology161 (1): 101–110. PMID18006332. doi:10.1016/j.jsb.2007.09.024.
Blanco, F. J.; Rivas, G.; Serrano, L. (1994). "A short linear peptide that folds into a native stable beta-hairpin in aqueous solution". Nat Struct Biol1 (9): 584–590. PMID7634098. doi:10.1038/nsb0994-584.
Hutchinson EG, Thornton JM (1990). "HERA--a program to draw schematic diagrams of protein secondary structures". Proteins8 (3): 203–12. PMID2281084. doi:10.1002/prot.340080303.