@article{TM_1990_183_a20,
     author = {V. P. Platonov and V. V. Benyash-Krivets},
     title = {Character rings of representations of finitely generated groups},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {169--178},
     publisher = {mathdoc},
     volume = {183},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1990_183_a20/}
}