@article{MO_2008_1_a5,
     author = {I. P. Kostenko},
     title = {Manuals {Have} {Nothing} to {Do} with?},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {71--73},
     year = {2008},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2008_1_a5/}
}