@article{ASUO_2013_XXI_1_a4,
     author = { M. K. Aouf and T. M. Seoudy },
     title = { Differential sandwich theorems of p-valent
                            analytic functions involving a linear operator },
     journal = {Analele Universit\u{a}\c{t}ii "Ovidius" Constan\c{t}a Seria Matematic\u{a}},
     publisher = {mathdoc},
     volume = {XXI},
     number = {1},
     year = {2013},
     url = {http://geodesic.mathdoc.fr/item/ASUO_2013_XXI_1_a4/}
}