@article{ZNSL_2021_507_a10,
     author = {V. V. Kornyak},
     title = {Subsystems of an isolated quantum system in finite quantum mechanics},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {183--202},
     publisher = {mathdoc},
     volume = {507},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2021_507_a10/}
}