A class of logarithmically completely monotonic functions associated with a gamma function. Zhao, Tie-Hong; Chu, Yu-Ming — 2010 Journal of Inequalities and Applications [electronic only]
Monotonic and logarithmically convex properties of a function involving gamma functions. Zhao, Tie-Hong; Chu, Yu-Ming; Jiang, Yue-Ping — 2009 Journal of Inequalities and Applications [electronic only]