@article {476,
	title = {Fertilization in a mature Scots pine (Pinus-sylvestris l) stand - effects on fine roots},
	journal = {Plant Soil},
	volume = {106},
	year = {1988},
	pages = {179-190},
	author = {Ahlstrom, K. and Persson, H. and Boriesson, I.}
}
