@article{MO_2005_4_a0,
     author = {A. Yu. Evnin},
     title = {Around {Hall} {Theorem} (finished)},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {2--16},
     year = {2005},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2005_4_a0/}
}