@article{IM2_1972_6_4_a4,
     author = {Yu. V. Kuz'min},
     title = {The variety of metabelian $\mathscr D$-groups},
     journal = {Izvestiya. Mathematics },
     pages = {759--781},
     publisher = {mathdoc},
     volume = {6},
     number = {4},
     year = {1972},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1972_6_4_a4/}
}