@article{MO_1998_1_a2,
     author = {V. V. Prasolov},
     title = {Four {Notes} on {Geometry}},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {34--51},
     year = {1998},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_1998_1_a2/}
}