@article{AL_1963_1_6_a2,
     author = {A. T. Gainov},
     title = {Derivations of reduced free algebras},
     journal = {Algebra i logika},
     pages = {20--25},
     year = {1963},
     volume = {1},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1963_1_6_a2/}
}