TY - JOUR AU - PFM Teunis AU - GJ Medema AU - L Kruidenier AU - AH Havelaar BT - Water Research LA - eng PY - 1997 EP - 1333–1346 T2 - Water Research TI - Assessment of the risk of infection by Cryptosporidium or Giardia in drinking water from a surface water source UR - https://www.sciencedirect.com/science/article/abs/pii/S0043135496003879 VL - 31 ER -