@article {Xu1993,
	title = {Electronic, optical, and structural properties of some wurtzite crystals},
	journal = {Physical Review B},
	volume = {48},
	year = {1993},
	month = {Jan-08-1993},
	pages = {4335 - 4351},
	issn = {0163-1829},
	doi = {10.1103/PhysRevB.48.4335},
	url = {http://link.aps.org/doi/10.1103/PhysRevB.48.4335}
}
