@article{RM_1995_50_4_a9,
     author = {A. M. Mel'nikov},
     title = {On the lower branches of the spectrum of two fermions interacting with a~boson gas (exiton)},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {824--825},
     publisher = {mathdoc},
     volume = {50},
     number = {4},
     year = {1995},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1995_50_4_a9/}
}