@article{jarosz09importance,
	author = {Wojciech Jarosz and Nathan A. Carr and Henrik Wann Jensen},
	title = {{Importance Sampling Spherical Harmonics}},
	journal = {Computer Graphics Forum (Proc. Eurographics EG'09)},
	volume = {28},
	number = {2},
	year = {2009},
	month = {4},
	pages = {577--586},
	address = {Munich, Germany}
}