@article{TRSPY_2020_309_a5,
     author = {Dmitri V. Bykov},
     title = {Flag {Manifold} {Sigma} {Models} and {Nilpotent} {Orbits}},
     journal = {Informatics and Automation},
     pages = {89--98},
     publisher = {mathdoc},
     volume = {309},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2020_309_a5/}
}