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@article{MV_1970_22_1_a11, author = {J. D. Ke\v{c}ki\'c}, title = {Some inequalities for convex functions or order n}, journal = {Matemati\v{c}ki vesnik}, pages = {61 }, publisher = {mathdoc}, volume = {22}, number = {1}, year = {1970}, url = {http://geodesic.mathdoc.fr/item/MV_1970_22_1_a11/} }
J. D. Kečkić. Some inequalities for convex functions or order n. Matematički vesnik, Tome 22 (1970) no. 1, p. 61 . http://geodesic.mathdoc.fr/item/MV_1970_22_1_a11/