@article{MO_2007_4_a5,
     author = {V. B. Drozdov},
     title = {Complex {Numbers} for {School} {Students} and {Teachers}},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {39--59},
     year = {2007},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2007_4_a5/}
}