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.
Strain characterization and classification of oxyphotobacteria in clone cultures on the basis of 16S rRNA sequences from the variable regions V6, V7, and V8
The 9 references without a DOI — listed, not checked
no DOI — not checkedGolubic S. Hofmann H. J. Comparison of Holocene and mid-Precambrian Entophysalidaceae (Cyanophyta) in stromatolitic algal mats: cell division and degradation.J. Paleontol.50197610741082
no DOI — not checkedHiggins D. G. Sharp P. M. Fast and sensitive multiple sequence alignments on a microcomputer.CABIOS51989151153
no DOI — not checkedKimura
M.
The neutral theory of molecular evolution
Evolution of genes and proteins.
Nei
M.
Koehn
R. K.
1983
208
233
Sinauer Associates
Sunderland Mass
no DOI — not checkedSaitou N. Nei M. The neighbor-joining method: a new method for reconstructing phylogenetic trees.Mol. Biol. Evol.41987406425
no DOI — not checkedSchopf
J. W.
Are the oldest fossils cyanobacteria?
Evolution of microbial life.
Roberts
D. M.
Sharp
P.
Alderson
G.
Collins
M.
1996
23
61
Cambridge University Press
Cambridge England
no DOI — not checkedSkulberg O. M. and R. Skulberg. 1997. Personal communication.
no DOI — not checkedSkulberg
R.
Skulberg
O. M.
Forskning med algekulturer.-NIVAs kultursamling av alger. Research with algal cultures.-NIVA’s Culture Collection of Algae.
1990
Norsk institutt for vannforskning
Oslo Norway
no DOI — not checkedStulp
B. K.
Morphological and molecular approaches to the taxonomy of the genus Anabaena (Cyanophyceae Cyanobacteria).
1983
Drukkerij van Denderen B.V.
Groningen Germany
no DOI — not checkedStephens J. C. Statistical methods of DNA sequence analysis: detection of intragenic recombination or gene conversion.Mol. Biol. Evol.21985539556
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.