GERHARDY, P. A Quantitative Version of Kirk’s Fixed Point Theorem for Asymptotic Contractions. BRICS Report Series, [S. l.], v. 11, n. 32, 2004. DOI: 10.7146/brics.v11i32.21857. Disponível em: https://tidsskrift.dk/brics/article/view/21857. Acesso em: 28 jan. 2023.