@article{EMJ_2020_11_2_a9,
     author = {A. S. Berdyshev and A. Hasanov and A. R. Ryskan},
     title = {Solution of the {Neumann} problem for one four-dimensional elliptic equation},
     journal = {Eurasian mathematical journal},
     pages = {93--97},
     publisher = {mathdoc},
     volume = {11},
     number = {2},
     year = {2020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EMJ_2020_11_2_a9/}
}