@article {1433,
	title = {Herb layer vegetation of south Swedish beech and oak forests - effects of management and soil acidity during one decade.},
	journal = {Forest Ecology and Management},
	volume = {88},
	year = {1996},
	pages = {259-272},
	author = {Brunet, J. and Falkengren-Grerup, U. and Tyler, G.}
}
@article {255,
	title = {Bryophytes and heavy metals: a literature review},
	journal = {Botanical Journal of the Linnean Society },
	volume = {104},
	year = {1990},
	pages = {231-253},
	author = {Tyler, G.}
}
@article {800,
	title = {Interacting effects of soil acidity and canopy cover on the species composition of field layer vegetation in oak/hornbeam forests},
	journal = {Forest Ecology and Management },
	volume = {28},
	year = {1989},
	pages = {101-114},
	author = {Tyler, G.}
}
@article {799,
	title = {Probable effects of soil acidification and nitrogen deposition on the floristic composition of oak (Quercus robur) forest},
	journal = {Flora},
	volume = {179},
	year = {1987},
	pages = {165-170},
	author = {Tyler, G.}
}
