@article{DAN_1957_114_2_a21,
     author = {A. N. Nesmeyanov and \`E. G. Perevalova and S. S. Churanov},
     title = {Ferrocenesulphoacids},
     journal = {Doklady Akademii Nauk},
     pages = {335--338},
     publisher = {mathdoc},
     volume = {114},
     number = {2},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_114_2_a21/}
}