@article{DAN_1982_263_4_a27,
     author = {N. L. Smirnova and N. V. Belov},
     title = {Homologous series in the system of chemical elements},
     journal = {Doklady Akademii Nauk},
     pages = {879--882},
     publisher = {mathdoc},
     volume = {263},
     number = {4},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1982_263_4_a27/}
}