@article{AL_1998_37_6_a5,
     author = {E. I. Timoshenko},
     title = {Primitive systems of elements in the variety $\mathfrak{AN}_2$
},
     journal = {Algebra i logika},
     pages = {687--699},
     publisher = {mathdoc},
     volume = {37},
     number = {6},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1998_37_6_a5/}
}