%0 Journal Article %A N. S. Belevtsov %T A Multipole algorithm for solving a fractional generalization of the helmholtz equation %J Numerical methods and programming %D 2021 %P 109-120 %V 22 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMP_2021_22_2_a1/ %G ru %F VMP_2021_22_2_a1