@article{AL_2010_49_5_a1,
     author = {S. F. Kamornikov and L. A. Shemetkov},
     title = {An $\mathfrak X$-crown of a~finite soluble group},
     journal = {Algebra i logika},
     pages = {591--614},
     year = {2010},
     volume = {49},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2010_49_5_a1/}
}