@article{ND_2017_13_3_a6,
     author = {E. V. Zhuzhoma and V. S. Medvedev and N. V. Isaenkova},
     title = {On the topological structure of the magnetic field of regions of the photosphere},
     journal = {Russian journal of nonlinear dynamics},
     pages = {399--412},
     publisher = {mathdoc},
     volume = {13},
     number = {3},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ND_2017_13_3_a6/}
}