All electron atomic orbit	GGA		0.82[u]
PAW	GGA	5.734	0.674[v]
PAW	GGA-PBE	5.648	0.43[w]
FP -LAPW	GGA-WC	5.6654	0.341[e]
	GGA-EV		0.968[e]
	mBJ-LDA		1.560[e]
	mBJ-LDA		1.64[x]
	HSE06		1.33[w]
	G₀W₀		1.51[w]
Plane wave and pseudopotential	GW		1.133[d]
Plane wave and pseudopotential	SX		1.289[d]
Ab initio pseudopotentials		5.52	0.4[y]
LUC-INDO		5.6542	1.91[z]
EPM			1.527[α]
EPM	Non local pseudopotential		1.51[β]
EPM	Non local pseudopotential	5.65	1.51[γ]
Experiments
Experimental	Absorption spectra measurements		1.519[δ] at low T
	Photoluminescence measurements		1.519[ε], low T 1.43[ζ] at 300 K
	Magnetoluminescence measurements	5.65325	1.5192[η], low T
	Transmission measurements		1.42[θ] at 300 K
	Raman measurements		1.519[ι] at low T 1.425[ι], 300 K
	Scanning tunneling microscopy and spectroscopy measurements		1.7[κ] at 300 K 1.2[λ] at 300 K 1.42[μ] at 300K
	Photocapacitance measurements		1.5[ν] at 77 K