@article {chen1991some,
	title = {Some results on generalized regression quantiles},
	journal = {Communications in Statistics-Theory and Methods},
	volume = {20},
	number = {3},
	year = {1991},
	pages = {911{\textendash}928},
	publisher = {Marcel Dekker, Inc.},
	author = {Chen, Jiahua and Qin, Jing}
}
