@article {1495,
	title = {A diagnostic biotic index for assessing acidity in sensitive streams in Britain.},
	journal = {Ecological Indicators},
	volume = {24},
	year = {2013},
	pages = {562-572},
	author = {Murphy, J.F. and Davy-Bowker, J. and McFarland, B. and Ormerod, S.J.}
}
