@article{AL_1988_27_5_a5,
     author = {B. V. Yakovlev},
     title = {Strict lattice definability of mixed nilpotent groups},
     journal = {Algebra i logika},
     pages = {604--616},
     publisher = {mathdoc},
     volume = {27},
     number = {5},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1988_27_5_a5/}
}