# The extent of mobile accessibility coverage in WCAG 2.1: sufficiency of success criteria and appropriateness of relevant conformance levels pertaining to accessibility problems encountered by users who are visually impaired

> Research article (Universal Access in the Information Society, 2021) · cited 42× · AI/ML

**Wikidata**: [openalex:W3120198900](https://www.wikidata.org/wiki/openalex:W3120198900)  
**Source**: https://4ort.xyz/entity/the-extent-of-mobile-accessibility-coverage-in-wcag-2-1-sufficiency-of-success-criteria-and-appropriateness-of-relevant-