@article{MO_2012_3_a0,
     author = {A. Ya. Kanel-Belov and R. Yavich},
     title = {On {Non-Forcible} {Teaching}},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {2--4},
     year = {2012},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2012_3_a0/}
}