For citations:
Nikulenkov A.M., Yeremin G.B., Noskov S.N., Mozzhukhina N.A., Wilkina M.V. Delineation of wellhead protection zones: the analysis of main geological factors. Hygiene and Sanitation. 2021;100(8):762-768. (In Russ.) https://doi.org/10.47470/0016-9900-2021-100-8-762-768