@article {Romic2007Compgeosci,
	title = {{Representing soil pollution by heavy metals using continuous limitation scores}},
	journal = {Computers \& Geosciences},
	volume = {33},
	year = {2007},
	pages = {1316-1326},
	author = {Romi{\'c}, M. and Hengl, T. and Romi{\'c}, D.}
}