@article{TM_1985_172_a6,
     author = {E. A. Volkov},
     title = {An exponentially converging method for the {Neumann} problem on multiply connected polygons},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {86--106},
     publisher = {mathdoc},
     volume = {172},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1985_172_a6/}
}