@article{articlefaa2454e,
title   = {Fibers of characters in Gelfand-Tsetlin categories},
author = {Futorny, Vyacheslav and Ovsienko, Serge},
year = {2014},
doi = {10.1090/S0002-9947-2014-05938-2},
journal   = {Transactions of the American Mathematical Society}
}