Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 22 references without a DOI — listed, not checked
no DOI — not checkedAhmed S, Bertrand F, Saxena VK, Subrahmanyam K, Touchard F (2002) A geostatistical method of determining priority of measurement wells in a fluoride monitoring network in an aquifer. J Appl Geochem 4(2B):576–585
no DOI — not checkedAlveteg T, Jonsson M (1991) Amendment of high fluoride ground waters. MSc project, Stockholm
no DOI — not checkedAPHA (1992) Standard methods of analysis of water and wastewater. American Public Health Association, Washington
no DOI — not checkedDeshmukh AN, Chakravarti PK (1995) Hydrochemical and hydrological impact of natural aquifer recharge of selected fluorosis endemic areas of Chandrapur district. Gondwana Geol Mag 9:169–184
no DOI — not checkedDev Burman GK, Singh B, Khatri P (1995) Hydrogeochemical studies of groundwater having high fluorides contents in Chandrapur district of Vidarbha region. Maharashtra Gondwana Geol Mag 9:71–80
no DOI — not checkedHashimi SAR, Engerrand C (1999) Groundwater status report for Maheshwaram watershed, A.P., India. Technical report no. 2013–1(IFCPAR) and GAP-182–28 (SA)
no DOI — not checkedHem JD (1985) Study and interpretation of the chemical characteristics of natural water. 2nd edn. US Geol. Surv. Water supply paper-2254, p 363
no DOI — not checkedHenderson P (1982) Inorganic chemistry. Pergamon Press, Oxford
no DOI — not checkedKakar YP, Sikka VM, Janeshwar D, Bhatnagar NC (1988) Hydrochemistry and pollution of groundwater in Faridabad area, Haryana. CGWB, NW region, Chandigarh, pp 32–35
no DOI — not checkedKaranth KR (1987) Ground water assessment, development and management. Tata McGraw-Hill, New Delhi, 720 pp
no DOI — not checkedPerel’man AL (1977) Geochemistry of elements in supergene zone. Keter Publishing House, Jerusalem
no DOI — not checkedPeriakali P, Subramanian S, Eswaramoorthi S, Arul B, Rajeshwara Rao N, Sridhar SGD (2001) Distribution of fluoride in the groundwater of Salem and Namakkal districts, Tamil Nadu. J Appl Geochem 3(2):120–132
no DOI — not checkedRainwater FH, Thatcher LL (1960) Methods for collection and analysis of water samples. US Geol. Surv. Water supply paper-1456, 301 pp
no DOI — not checkedPatalia R (1999) Defluoridation: Nalgonda technology vs ion exchange technology: a case study national seminar fluoride contamination, fluorosis and defluoridation techniques. In: Gyani KC et al (eds) Proceedings of the national seminar fluoride contamination, fluorosis and defluoridation techniques, pp 2–4
no DOI — not checkedRama Rao NV (1982) Geochemical factors influencing the distribution of fluoride in rocks, soils and water sources of Nalgonda district. Doctoral Thesis, Osmania University, 320 pp
no DOI — not checkedSubba Rao N, Prakasa Rao J, John Devadas D, Srinivasa Rao KV, Krishna C, Rao N (2002) Hydrogeochemistry and groundwater quality in a developing urban environment of a semi-arid region, Guntur, Andhra Pradesh. J Geol Soc India 59:159–166
no DOI — not checkedSubrahmanyam K, Ahmed S, Dhar RL (2000) Geological and hydrogeological investigations in the Maheswaram watershed, A.P., India. Technical report no. NGRI-2000−GW-292, 16 pp
no DOI — not checkedSumalatha S, Ambika SRA, Prasad SJ (1999) Fluoride concentration status of groundwater in Karnataka, India. Curr Sci 76:730–734
no DOI — not checkedSusheela AK (1999) Fluorosis management programme in India. Curr Sci 77:1250–1256
no DOI — not checkedVan der Lee J (1998) Thermodynamic and mathematical concepts of CHESS. Technical report LHM/RD/98/39, CIG, Ecole des Mines de Paris, France
no DOI — not checkedWHO—World Health Organization (1984) Guidelines for drinking water quality, values. WHO, Geneva, 212 pp
no DOI — not checkedWodeyar BK, Sreenivasan G (1996) Occurrence of fluoride in the groundwaters and its impact in Peddavankahalla Basin, Bellary district, Karnataka, India—a preliminary study. Curr Sci 70:71–74
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