@article{VMUMM_2016_4_a2,
     author = {A. T. Lukashenko},
     title = {Description of a potential vector field without sources near null points of higher orders in {3D} space},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {18--22},
     publisher = {mathdoc},
     number = {4},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2016_4_a2/}
}