@article{MO_2021_98_2_a8,
     author = {B. L. Druzhinin},
     title = {Two notes on the history of mathematics},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {71--80},
     publisher = {mathdoc},
     volume = {98},
     number = {2},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2021_98_2_a8/}
}