Volume 19, Issue 3 Barkat Ali Bhayo József Sándor On Jordan's, Redheffer's and Wilker's inequality Downloads Abstract PDF Full article PDF DOI { copied = true; setTimeout(() => copied = false, 2000) })" :aria-label="copied ? 'DOI copied' : 'Copy DOI'" :title="copied ? 'Copied' : 'Copy DOI'" > Find all available articles from these authors Barkat Ali Bhayo József Sándor Find more articles with the same keywords trigonometric and hyperbolic functions Jordan's inequality Cusa-Huygens inequality Redheffer's inequality Wilker's inequality Becker-Stark inequality Find more articles with the same subject classes 26D05 26D07 26D99