@article{MO_2017_3_a0,
     author = {V. K. Gavrilov},
     title = {Menelau's equality, the bunch direct lines, and the polygon},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {2--6},
     year = {2017},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2017_3_a0/}
}