@article{DAN_1960_134_5_a31,
     author = {Vikt. I. Spitsyn and R. A. D'yachkova},
     title = {Isolation of weighable quantities of pure piotactinium-231},
     journal = {Doklady Akademii Nauk},
     pages = {1111--1114},
     publisher = {mathdoc},
     volume = {134},
     number = {5},
     year = {1960},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1960_134_5_a31/}
}