@article{IM2_2004_68_6_a3,
     author = {A. B. Zaitsev},
     title = {Uniform approximability of functions by polynomial solutions of second-order elliptic equations on compact plane sets},
     journal = {Izvestiya. Mathematics},
     pages = {1143--1156},
     year = {2004},
     volume = {68},
     number = {6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2004_68_6_a3/}
}