TY - JOUR AU - Şahsene Altınkaya AU - Sibel Yalçın TI - Coefficient problem for certain subclasses of bi-univalent functions defined by convolution JO - Mathematica Moravica PY - 2016 SP - 15 EP - 21 VL - 20 IS - 2 PB - mathdoc UR - https://geodesic-test.mathdoc.fr/item/MM3_2016_20_2_a1/ ID - MM3_2016_20_2_a1 ER -