@article{VMP_2021_22_2_a1,
     author = {N. S. Belevtsov},
     title = {A {Multipole} algorithm for solving a fractional generalization of the helmholtz equation},
     journal = {Numerical methods and programming},
     pages = {109--120},
     publisher = {mathdoc},
     volume = {22},
     number = {2},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMP_2021_22_2_a1/}
}