@article{SM_2021_212_12_a3,
     author = {P. V. Paramonov},
     title = {Uniform approximation of functions by solutions of strongly elliptic equations of second order on compact subsets of~$\mathbb R^2$},
     journal = {Sbornik. Mathematics},
     pages = {1730--1745},
     publisher = {mathdoc},
     volume = {212},
     number = {12},
     year = {2021},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2021_212_12_a3/}
}