%0 Journal Article %A Ji, Zhengchao %A Ding, Qing %A Zhao, Tiehong %T Optimal inequalities for a Toader-type mean by quadratic and contraharmonic means %J Journal of nonlinear sciences and its applications %D 2018 %P 150-160 %V 11 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.22436/jnsa.011.01.11/ %R 10.22436/jnsa.011.01.11 %G en %F JNSA_2018_11_1_a10