TY  - JOUR
AU  - A. M. Mel'nikov
TI  - On the lower branches of the spectrum of two fermions interacting with a~boson gas (exiton)
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1995
SP  - 824
EP  - 825
VL  - 50
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1995_50_4_a9/
LA  - en
ID  - RM_1995_50_4_a9
ER  -