@article {xu2015thresholding,
	title = {A Thresholding Algorithm for Order Selection in Finite Mixture Models},
	journal = {Communications in Statistics-Simulation and Computation},
	volume = {44},
	number = {2},
	year = {2015},
	pages = {433{\textendash}453},
	publisher = {Taylor \& Francis},
	author = {Xu, Chen and Chen, Jiahua}
}
