@article{IM2_1967_1_2_a3,
     author = {Ya. S. Bugrov},
     title = {Inequalities for polyharmonic polynomials in a mixed norm},
     journal = {Izvestiya. Mathematics },
     pages = {259--272},
     publisher = {mathdoc},
     volume = {1},
     number = {2},
     year = {1967},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1967_1_2_a3/}
}