@article{MO_2002_1_a6,
     author = {V. M. Imaykin},
     title = {The approach to the contents of education from the point of view of activities},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {64--73},
     year = {2002},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2002_1_a6/}
}