@article{MO_2020_94_2_a0,
     author = {A. N. Afanasyev},
     title = {Simple geometric facts that help to solve geometric problems},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {2--17},
     publisher = {mathdoc},
     volume = {94},
     number = {2},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2020_94_2_a0/}
}