@article{DAN_1960_135_6_a17,
     author = {B. M. Vul and E. I. Zavaritskaya and L. V. Keldysh},
     title = {Impurity conductivity of germanium at low temperatures},
     journal = {Doklady Akademii Nauk},
     pages = {1361--1363},
     publisher = {mathdoc},
     volume = {135},
     number = {6},
     year = {1960},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1960_135_6_a17/}
}