%0 Journal Article %A Bülent Nafi Örnek %T Some estimates for angular derivative at the boundary %J Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica %D 2017 %P 120-134 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/BASM_2017_3_a9/ %G en %F BASM_2017_3_a9