@article{DAN_1957_113_6_a15,
     author = {K. A. Dolmatova and V. M. Kel'man},
     title = {A longitudinal field $\beta$-spectrometer, whose spherical aberration is compensated by a transverse magnetic field},
     journal = {Doklady Akademii Nauk},
     pages = {1244--1247},
     publisher = {mathdoc},
     volume = {113},
     number = {6},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_113_6_a15/}
}