@article{AL_2007_46_4_a6,
     author = {D. A. Tusupov},
     title = {Isomorphisms, definable relations, and {Scott} families of class~2 nilpotent groups},
     journal = {Algebra i logika},
     pages = {514--524},
     publisher = {mathdoc},
     volume = {46},
     number = {4},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2007_46_4_a6/}
}