@article{TMF_1981_48_2_a12, author = {A. V. Luzanov and M. M. Mestechkin}, title = {On the population numbers of pair states in a~system of excitons}, journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika}, pages = {266--271}, publisher = {mathdoc}, volume = {48}, number = {2}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TMF_1981_48_2_a12/} }