@article{UZERU_2011_1_a11,
     author = {N. G. Nadzharyan},
     title = {Completely invariant subspaces of free algebras},
     journal = {Proceedings of the Yerevan State University. Physical and mathematical sciences},
     pages = {64--65},
     year = {2011},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UZERU_2011_1_a11/}
}