

@article {4125,
	title = {{Fate of Cryptosporidium oocysts and Giardia cysts in the Norwegian aquatic environment over winter.}},
	journal = {Microbiol. Ecol},
	volume = {52},
	year = {2006},
	pages = {597{\textendash}602},
	author = {Robertson, LJ and Gjerde, B}
}
