@article{AL_1972_11_5_a0,
     author = {O. V. Belegradek and M. A. Taitslin},
     title = {Two remarks on the varieties ${\mathfrak A}_{m,n}$},
     journal = {Algebra i logika},
     pages = {501--508},
     publisher = {mathdoc},
     volume = {11},
     number = {5},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1972_11_5_a0/}
}