@article{DAN_1988_299_2_a21, author = {A. G. Abroskin and S. E. Nol'de and V. V. Fadeev and V. V. Chubarov}, title = {Determination of the concentrations}, journal = {Doklady Akademii Nauk}, pages = {351--354}, year = {1988}, volume = {299}, number = {2}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1988_299_2_a21/} }