@article{AL_1970_9_2_a0,
     author = {A. A. Akataev},
     title = {The varieties $\mathfrak{A}_{m,n}$},
     journal = {Algebra i logika},
     pages = {127--136},
     publisher = {mathdoc},
     volume = {9},
     number = {2},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1970_9_2_a0/}
}