@article{CMUC_2007_48_4_a2,
     author = {Kurdachenko, Leonid A. and Subbotin, Igor Ya.},
     title = {On some soluble groups in which $U$-subgroups form a lattice},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {585--593},
     year = {2007},
     volume = {48},
     number = {4},
     mrnumber = {2375160},
     zbl = {1174.20310},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_2007_48_4_a2/}
}