@article {johnson2003longevity,
	title = {Longevity of granular iron in groundwater treatment processes: changes in solute transport properties over time PJ Vikesland, J. Klausen, H. Zimmermann, A. Lynn Roberts and WP Ball............... 3 The effect of local-scale physical heterogeneity and nonl},
	journal = {Journal of Contaminant Hydrology},
	volume = {64},
	year = {2003},
	pages = {309{\textendash}310},
	author = {Johnson, GR and Gupta, K and Putz, DK and Hu, Q and Brusseau, ML and Richnow, HH and Meckenstock, RU and Reitzel, L Ask and Baun, A and Ledin, A and others}
}