@article{AL_1970_9_6_a8,
     author = {G. P. Kykin},
     title = {The {Cartesian} subalgebra of the free {Lie} sum of {Lie} algebras},
     journal = {Algebra i logika},
     pages = {701--713},
     publisher = {mathdoc},
     volume = {9},
     number = {6},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1970_9_6_a8/}
}