@article{RCM_2017_51_1_a4,
     author = {Badreddine Meftah},
     title = {New {Ostrowski's} inequalties},
     journal = {Revista colombiana de matematicas},
     pages = {57--69},
     publisher = {mathdoc},
     volume = {51},
     number = {1},
     year = {2017},
     url = {http://geodesic.mathdoc.fr/item/RCM_2017_51_1_a4/}
}