

@article {4015,
	title = {{Presence of Giardia cysts and Cryptosporidium oocysts in drinking water supplies in northern Spain}},
	journal = {Journal of Applied Microbiology},
	volume = {102},
	year = {2007},
	pages = {619{\textendash}629},
	author = {Carmena, D and Aguinagalde, X and Zigorraga, C and Fern{\'a}ndez-Crespo, JC and Ocio, JA}
}
