%0 Journal Article %A Serap Bulut %A Abbas Kareem Wanas %T Coefficient estimates for families of bi-univalent functions defined by Ruscheweyh derivative operator %J Mathematica Moravica %D 2021 %P 71 - 80 %V 25 %N 1 %I mathdoc %U https://geodesic-test.mathdoc.fr/item/MM3_2021_25_1_a5/ %F MM3_2021_25_1_a5