QI, Feng; WANG, Shu-Hong. Complete monotonicity, completely monotonic degree, integral representations, and an inequality related to the exponential, trigamma, and modified Bessel functions. Global Journal of Mathematical Analysis, [S. l.], v. 2, n. 3, p. 91–97, 2014. DOI: 10.14419/gjma.v2i3.2919. Disponível em: https://sciencepubco.com/index.php/GJMA/article/view/2919.. Acesso em: 9 apr. 2025.