%0 Journal Article %A T. G. Ergashev %T Third double-layer potential for a generalized bi-axially symmetric Helmholtz equation %J Ufa mathematical journal %D 2018 %P 111-121 %V 10 %N 4 %U http://geodesic.mathdoc.fr/item/UFA_2018_10_4_a10/ %G en %F UFA_2018_10_4_a10