%0 Journal Article %A El Frissi, Abdallah %A Belaïdi, Benharrat %A Lareuch, Zinelaâbidine %T Jensen type inequalities for twice dierentiable functions %J Journal of nonlinear sciences and its applications %D 2012 %P 350-356 %V 5 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.22436/jnsa.005.05.05/ %R 10.22436/jnsa.005.05.05 %G en %F JNSA_2012_5_5_a4