@article {wang2014hierarchical,
	title = {Hierarchical Bayes based Adaptive Sparsity in Gaussian Mixture Model},
	journal = {Pattern Recognition Letters},
	volume = {49},
	year = {2014},
	pages = {238{\textendash}247},
	publisher = {North-Holland},
	author = {Wang, Binghui and Lin, Chuang and Fan, Xin and Jiang, Ning and Farina, Dario}
}
