@article{AL_2014_53_5_a2,
     author = {E. N. Poroshenko},
     title = {Commutator width of elements in a~free metabelian {Lie} algebra},
     journal = {Algebra i logika},
     pages = {587--613},
     publisher = {mathdoc},
     volume = {53},
     number = {5},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2014_53_5_a2/}
}