@article {42051,
	title = {Influence of lake trophic status on the occurrence of microcystin-LR in the tissue of pulmonate snails},
	volume = {42},
	year = {1999},
	pages = {707-718},
	publisher = {Freshwater Biology},
	url = {http://www.blackwell-synergy.com/doi/abs/10.1046/Journal1365-2427.1999.00392.x},
	author = {Zurawell, Ronald W. and Kotak, Brian G. and Prepas, E. E.}
}
