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,
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Water quality deterioration at a karst spring (Gallusquelle, Germany) due to combined sewer overflow: evidence of bacterial and micro-pollutant contamination
A high‐throughput and quantitative hierarchical oligonucleotide primer extension (HOPE)‐based approach to identify sources of faecal contamination in water bodies
Using chemical and microbiological indicators to track the impacts from the land application of treated municipal wastewater and other sources on groundwater quality in a karstic springs basin
Using Cl/Br ratios and other indicators to assess potential impacts on groundwater quality from septic systems: A review and examples from principal aquifers in the United States
The 15 references without a DOI — listed, not checked
no DOI — not checked10.1016/j.scitotenv.2014.05.086_bb0005
no DOI — not checked10.1016/j.scitotenv.2014.05.086_bb0015
no DOI — not checked10.1016/j.scitotenv.2014.05.086_bb0030
no DOI — not checked10.1016/j.scitotenv.2014.05.086_bb0035
no DOI — not checkedSinkhole collapse and ground water contamination problems resulting from storm water drainage wells on karst terrain
no DOI — not checked10.1016/j.scitotenv.2014.05.086_bb0055
no DOI — not checkedBacteria contamination of groundwater in a mixed land-use karst region
no DOI — not checked16S/23S rRNA sequencing
no DOI — not checkedKarst regions of Illinois
no DOI — not checked10.1016/j.scitotenv.2014.05.086_bb0165
no DOI — not checkedCanoco Reference Manual and Cano Draw for Windows User's Guide: Software for Canonical Ordination (Version 4.5)
no DOI — not checked10.1016/j.scitotenv.2014.05.086_bb0215
no DOI — not checked10.1016/j.scitotenv.2014.05.086_bb0220
no DOI — not checked10.1016/j.scitotenv.2014.05.086_bb0225
no DOI — not checked10.1016/j.scitotenv.2014.05.086_bb0210
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