Medema, GJSchets, FMTeunis, PFMHavelaar, AH2025-03-142025-03-141998https://rivm.openrepository.com/handle/10029/637652Sedimentation of free and attached Cryptosporidium oocysts and Giardia cysts in water.ArticleAppl Environ Microbiol 1998; 64:4460-62025-03-14