@article {ChenCPS10,
	title = {Bending crystals: the evolution of grain boundaries and fractal dislocation structures},
	journal = {Phys. Rev. Lett.},
	volume = {105},
	year = {2010},
	pages = {105501},
	author = {Yong S. Chen and Woosong Choi and Stefanos Papanikolaou and James P. Sethna}
}
