Volume 10, Issue 2 Daniel C. Biles Lower bounds for the first zero for nonlinear second order differential equations 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 Daniel C. Biles Find more articles with the same keywords second order differential equations nonlinear differential equations estimation of a zero Find more articles with the same subject classes 34C10 34A34 34A36