@article{DAN_1970_194_6_a7,
     author = {V. I. Polovinkin},
     title = {Exterior problems for the polyharmonic equation},
     journal = {Doklady Akademii Nauk},
     pages = {1273--1276},
     publisher = {mathdoc},
     volume = {194},
     number = {6},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1970_194_6_a7/}
}