@article{TRSPY_2017_298_a2,
     author = {A. O. Bagapsh and K. Yu. Fedorovskiy},
     title = {$C^1$ {Approximation} of {Functions} by {Solutions} of {Second-Order} {Elliptic} {Systems} on {Compact} {Sets} in $\mathbb R^2$},
     journal = {Informatics and Automation},
     pages = {42--57},
     publisher = {mathdoc},
     volume = {298},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2017_298_a2/}
}