@article{DAN_1957_117_2_a15,
     author = {A. D. Gel'man and M. P. Mefodieva},
     title = {The problem of production of trivalent neptunium},
     journal = {Doklady Akademii Nauk},
     pages = {225--226},
     publisher = {mathdoc},
     volume = {117},
     number = {2},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_117_2_a15/}
}