@article{LJM_2006_22_a2,
     author = {M. Darus and Kh. al-Shaqsi},
     title = {On harmonic univalent functions defined by a~generalized {Ruscheweyh} derivatives operator},
     journal = {Lobachevskii journal of mathematics},
     pages = {19--26},
     publisher = {mathdoc},
     volume = {22},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/LJM_2006_22_a2/}
}