Volume 6, Issue 1 Bai-Ni Guo Bao-Min Qiao Feng Qi Wei Li On new proofs of Wilker's inequalities involving trigonometric functions 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 Bai-Ni Guo Bao-Min Qiao Feng Qi Wei Li Find more articles with the same keywords trigonometric function Wilker's inequality Bernoulli number Find more articles with the same subject classes 26D05