@article {5401,
	title = {Half integer quantum Hall effect in high mobility single layer epitaxial graphene},
	year = {2009},
	doi = {10.1063/1.3266524},
	author = {Xiaosong Wu and Yike Hu and Ming Ruan and Nerasoa K Madiomanana and John Hankinson and Mike Sprinkle and Claire Berger and Walt A. De Heer}
}
