@article {1949,
	title = {Acute and chronic toxicity of manganese to to brown trout (Salmo trutta) in hard water},
	year = {1995},
	institution = {Colorado Division of Wildlife},
	author = {Davies, P. H and Brinkmand, S. F}
}
@article {1948,
	title = {Acute and chronic toxicity of manganese to exposed and unexposed rainbow and brown trout},
	year = {1994},
	institution = {Colorado Division of Wildlife},
	author = {Davies, P. H and Brinkmand, S. F}
}
