@article{UFA_2021_13_2_a5,
     author = {D. V. Millionshchikov and S. V. Smirnov},
     title = {Characteristic algebras and  integrable exponential systems},
     journal = {Ufa mathematical journal},
     pages = {41--69},
     publisher = {mathdoc},
     volume = {13},
     number = {2},
     year = {2021},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UFA_2021_13_2_a5/}
}