@article{PIM_1988_N_S_43_57_a7,
     author = {Sang Keun Lee and Shigeyoshi Owa and Tadayuki Sekine and Milutin Obradovi\'c},
     title = {Distortion {Theorems} for {Fractional} {Calculus} of {Certain} {Analytic} {Functions} {With} {Negative} {Coefficients}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {65 - 69},
     publisher = {mathdoc},
     volume = {(N.S.) 43},
     number = {57},
     year = {1988},
     url = {https://geodesic-test.mathdoc.fr/item/PIM_1988_N_S_43_57_a7/}
}