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.
16 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.
An Empirical Evaluation of the System Usability Scale
The 16 references without a DOI — listed, not checked
no DOI — not checkedref1
no DOI — not checkedref3
no DOI — not checkedref4
no DOI — not checkedref5
no DOI — not checkedProgressive Web Apps: The possible web-native unifier for mobile development
no DOI — not checkedProgressive Web Apps: The definite approach to cross-platform development?
no DOI — not checkedProgressive Web Apps: Escaping tabs without losing our soul
no DOI — not checkedConflict-free replicated data types
no DOI — not checkedVerifying strong eventual consistency in distributed systems
no DOI — not checkedref12
no DOI — not checkedProgressive Web Applications: Review and comparison of development frameworks
no DOI — not checkedOpen source based Progressive Web Applications development
no DOI — not checkedref19
no DOI — not checkedref20
no DOI — not checkedSUS: A quick and dirty usability scale
no DOI — not checkedref23
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 2026-09-08 — 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.