@article{MO_2001_4_a5,
     author = {A. Ruinskii},
     title = {The pedal triangle (continued)},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {65--78},
     year = {2001},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2001_4_a5/}
}