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.
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.
A Critical Evaluation of Sample Pretreatment for Storage of Contaminated Sediments to be Investigated for the Potential Mobility of their Heavy Metal Load
The effect of oxidation and acidification on the speciation of heavy metals in sulfide-rich freshwater sediments using a sequential extraction procedure
Heavy metal speciation in solid-phase materials from a bacterial sulfate reducing bioreactor using sequential extraction procedure combined with acid volatile sulfide analysis
Management strategies and valorization for waste sludge from active treatment of extremely metal-polluted acid mine drainage: A contribution for sustainable mining
Effectiveness of sulfate-reducing passive bioreactors for treating highly contaminated acid mine drainage: II. Metal removal mechanisms and potential mobility
A Review of the Different Methods Applied in Environmental Geochemistry For Single and Sequential Extraction of Trace Elements in Soils and Related Materials
Methodological approaches for fractionation and speciation to estimate trace element bioavailability in engineered anaerobic digestion ecosystems: An overview
Start-up, adjustment and long-term performance of a two-stage bioremediation process, treating real acid mine drainage, coupled with biosynthesis of ZnS nanoparticles and ZnS/TiO2 nanocomposites
The 9 references without a DOI — listed, not checked
no DOI — not checkedCommission Decision (2001) Commission Decision of 16 January 2001 amending Decision 2000/532/EC as regards the list of wastes. Official Journal of the European Communities L 47/41 - L 47/31
no DOI — not checkedCommission Directive 2001/59/EC of 6 August 2001 adapting to technical progress for the 28th time Council Directive 67/548/EEC on the approximation of the laws, regulations and administrative provisions relating to the classification, packaging and labelling of dangerous substances. Official Journal of the European Communities L 225/221 - L 225/333
no DOI — not checkedCouncil Decision (2003) Council Decision of 19 December 2002 establishing criteria and procedures for the acceptance of waste at landfills pursuant to Article 16 of and Annex II to Directive 1999/31/EC. Official Journal of the European Communities L 11/27 - L 11/49
no DOI — not checkedDean JA (1999) Lange’s handbook of chemistry. 15th ed. McGraw-Hill Inc
no DOI — not checkedEuropean Standard (n.d.) EN 12457-2: Characterisation of waste. Leaching. Compliance test for leaching of granular waste materials and sludges. One stage batch test at a liquid to solid ratio of 10 l/kg for materials with particle size below 4 mm (without or with size reduction)
no DOI — not checkedFöldvári M (2011) Handbook of thermogravimetric system of minerals and its use in geological practice, vol 213. Occasional Papers of the Geological Institute of Hungary. Geological Institute of Hungary, Budapest
no DOI — not checkedHao OJ (2000) Metal effects on sulfur cycle bacteria and metal removal by sulfate reducing bacteria. In: Lens PNL, Hulshoff Pol LW (eds) Environmental technologies to treat sulfur pollution: principles and engineering. IWA Publishing, London, pp 393–414
no DOI — not checkedKousi P, Remoundaki E, Hatzikioseyian A, Tsezos M (2011b) Sulphate-reducing fixed-bed bioreactors fed with different organic substrates for metal precipitation. In: Qiu G, Jiang T, Qin W, Liu X, Yang Y, Wang H (eds) Biohydrometallurgy: biotech key to unlock mineral resources value, Proceedings of the 19th International Biohydrometallurgy Symposium (IBS 2011), Changsha, China, 18–22 September 2011b. Central South University Press, pp 1078–1084
no DOI — not checkedPostgate JR (1979) The sulphate-reducing bacteria. Cambridge University Press, Cambridge
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 2026-07-23 — re-checked daily as this page is visited;
titles and statuses come from Crossref and DataCite and are not part of the signed record
Both snippets point at the live badge image and link back to this page. The
badge re-renders from the daily check, so an embed never goes stale by more than a day of visits.