@article {46973,
	title = {Earthworm invasion into previously earthworm-free temperate and boreal forests},
	volume = {7},
	year = {2006},
	pages = {1235-1245},
	publisher = {Biological Invasions},
	author = {Frelich, L. E. and Hale, C. M. and Scheu, S. and et al}
}
