@article{MO_2021_1_a2,
     author = {V. B. Drozdov},
     title = {An interesting property of a triangle},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {13--16},
     year = {2021},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2021_1_a2/}
}