%0 Journal Article %A E. H. Khalilov %T Quadrature formula for normal derivative of double layer potential %J Ufa mathematical journal %D 2023 %P 100-111 %V 15 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/UFA_2023_15_4_a6/ %G en %F UFA_2023_15_4_a6