@article{FPM_2012_17_1_a6,
     author = {A. V. Klimakov and A. A. Mikhalev},
     title = {Almost primitive elements of free nonassociative algebras of small ranks},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {127--141},
     publisher = {mathdoc},
     volume = {17},
     number = {1},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2012_17_1_a6/}
}