TY - JOUR AU - F. G. Uskov TI - On a Complete Basis in the Space of Rotationally Invariant Operators of $N$ Quantum Spins $1/2$ JO - Informatics and Automation PY - 2021 SP - 280 EP - 284 VL - 313 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TRSPY_2021_313_a23/ LA - ru ID - TRSPY_2021_313_a23 ER -