@article{DAN_1989_309_3_a9,
     author = {A. N. Golubyatnikov and S. I. Plotnikov},
     title = {On the separation of energy from mass in inhomogeneous discrete},
     journal = {Doklady Akademii Nauk},
     pages = {559--562},
     publisher = {mathdoc},
     volume = {309},
     number = {3},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_309_3_a9/}
}