@article{MO_2022_2_a1, author = {M. R. Bortkovskaya and T. R. Stepanova}, title = {Two proofs of invariance of rotor w.r.t. replacement of a basis as an example of the relationship of courses of physics and mathematics}, journal = {Matemati\v{c}eskoe obrazovanie}, pages = {9--12}, year = {2022}, number = {2}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MO_2022_2_a1/} }