Reference health
Gaseous nitrogen as evidence for denitrification in groundwater
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1 of 16 checkable references need attention · checked 2026-07-22
At the dated check, the references listed below either did not resolve in Crossref or DataCite, or carried a retraction notice. Each one is shown with the registry record that put it there.
9 without a DOI — not checked. A reference deposited without a DOI is never matched by title or guessed at; it stays outside the checked set, and this line discloses that.
References needing attention
does not resolve to a known work10.1128/MMBR.37.4.409-452.1973
The 15 checked references that resolve
resolves10.1016/0038-0717(77)90040-2
Nitrogen isotope discrimination in denitrification of nitrate in soils
resolves10.1016/0304-4203(75)90009-2
Isotopic fractionation of dissolved nitrate during denitrification in the eastern tropical north pacific ocean
resolves10.1016/0022-1694(77)90035-X
The age of groundwater in the Lincolnshire Limestone, England and its relevance to the flow mechanism
resolves10.1029/WR015i002p00399
Determination of the initial <sup>14</sup>C activity of the total dissolved carbon: A review of the existing models and a new approach
resolves10.1080/02626668009491947
Rate of oxygen removal in some South African groundwaters / Taux d'enlèvement d'oxygène dans de certaines eaux souterraines en Afrique du Sud
resolves10.1016/0022-1694(79)90011-8
Nitrogen-isotope ratio studies of soils and groundwater nitrate from alluvial fan aquifers in Texas
resolves10.1016/0038-0717(77)90049-9
Acetylene reduction (N2-fixation) by nodules of Acacia cyanophylla
The 9 references without a DOI — listed, not checked
no DOI — not checkedDenitrification in natural waters
no DOI — not checkedPhotosynthetic pathways and the geographical distribution of grasses in South West Africa
no DOI — not checkedFlowing boreholes in the Rehoboth, Gibeon and Gobabis Districts, South West Africa
no DOI — not checkedGas concentrations and ages of groundwaters in Beaufort group sediments, South Africa
no DOI — not checkedDas artesische Becken der Südkalahari
no DOI — not checkedThe isotope effect on the nitrogen in biochemical, oxidation—reduction reactions
no DOI — not checkedUse of C-13C-12 ratios to correct radiocarbon ages of material initially diluted by limestone
no DOI — not checkedCarbon-14 dating of groundwater
no DOI — not checkedThe solubility of nitrogen, oxygen and argon in water and seawater
What this badge says. CiteStamped means the CHECKABLE references of this
work were clean at the dated check: each resolved to a known work in a public registry, and none
carried a retraction notice at that time. It says nothing about the quality, findings,
or importance of the work itself, and nothing about references deposited without a DOI.
checked 2026-07-22 — re-checked daily as this page is visited; titles and statuses come from Crossref and DataCite and are not part of the signed record
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