@article{ZNSL_2014_422_a2,
     author = {M. N. Demchenko},
     title = {On transforms of divergence-free and curl-free fields, connected with inverse problems},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {27--46},
     year = {2014},
     volume = {422},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2014_422_a2/}
}