@article {zidek1998using,
	title = {Using spatial data in assessing the association between air pollution episodes and respiratory morbidity},
	journal = {Statistics for the Environment},
	volume = {4},
	year = {1998},
	pages = {117{\textendash}136},
	author = {Zidek, J.V. and White, R and Le, N.D.}
}
