@article{DAN_1975_225_4_a13,
     author = {V. V. Isaev-Ivanov and V. A. Ryzhov and V. N. Fomichev},
     title = {Nonlinear relaxation effects in paramagnetic substances},
     journal = {Doklady Akademii Nauk},
     pages = {794--797},
     publisher = {mathdoc},
     volume = {225},
     number = {4},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_225_4_a13/}
}