@article{AL_2011_50_6_a6,
     author = {A. G. Myasnikov and N. S. Romanovskii},
     title = {Universal theories for rigid soluble groups},
     journal = {Algebra i logika},
     pages = {802--821},
     publisher = {mathdoc},
     volume = {50},
     number = {6},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2011_50_6_a6/}
}