?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Bennion%2C+H&rft.aulast=Bennion&rft.aufirst=H&rft.atitle=The+use+of+diatom+records+to+establish+reference+conditions+for+UK+lakes+subject+to+eutrophication&rft.title=J+PALEOLIMNOL&rft.pages=469+-+488&rft.date=April+2011&rft.issue=4&rft.volume=45&rft.issn=0921-2728&rft.genre=article