@book {TerBraak2012,
	title = {Canoco reference manual and user{\textquoteright}s guide: software for ordination, version 5.0.},
	year = {2012},
	pages = {496},
	publisher = {Microcomputer Power},
	organization = {Microcomputer Power},
	address = {Ithaca, USA},
	author = {Ter Braak, C.J.F. and Smilauer, P.}
}
@book {Sherlock2012,
	title = {A Key to the Earthworms of the UK and Ireland. AIDGAP (Aids to the Identification of Difficult Groups of Animals and Plants)},
	year = {2012},
	author = {Sherlock, E.}
}
@book {Hubble2012,
	title = {Keys to the adults of Seed and Leaf Beetles of the British Isles AIDGAP (Aids to the Identification of Difficult Groups of Animals and Plants)},
	year = {2012},
	publisher = {Field Studies Council},
	organization = {Field Studies Council},
	author = {Hubble, David}
}
