For citations:
Trofimovich E.M., Nedovesova S.A., Aizman R.I. Experimental hygienic estimation of calcium and magnesium concentrations in drinking water, and its hardness. Hygiene and Sanitation. 2019;98(8):811-819. (In Russ.) https://doi.org/10.47470/0016-9900-2019-98-8-811-819