@article{DAN_1992_324_5_a1,
     author = {E. L. Korotyaev},
     title = {The {Enss} method taking into account anisotropy},
     journal = {Doklady Akademii Nauk},
     pages = {923--927},
     publisher = {mathdoc},
     volume = {324},
     number = {5},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1992_324_5_a1/}
}