@article{FPM_2009_15_1_a7,
     author = {V. M. Petrogradsky and A. A. Smirnov},
     title = {On invariants of modular free {Lie} algebras},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {117--124},
     publisher = {mathdoc},
     volume = {15},
     number = {1},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2009_15_1_a7/}
}