@article {deo2017forecasting,
	title = {Forecasting effective drought index using a wavelet extreme learning machine (W-ELM) model},
	journal = {Stochastic environmental research and risk assessment},
	volume = {31},
	number = {5},
	year = {2017},
	pages = {1211{\textendash}1240},
	publisher = {Springer Berlin Heidelberg},
	author = {Deo, Ravinesh C and Tiwari, Mukesh K and Adamowski, Jan F and Quilty, John M}
}