@article{DAN_1957_115_1_a21,
     author = {A. P. Nikol'skii},
     title = {On the planetary distribution of ionospheric magnetic disturbances and aurorae},
     journal = {Doklady Akademii Nauk},
     pages = {84--87},
     publisher = {mathdoc},
     volume = {115},
     number = {1},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_115_1_a21/}
}