@article{ZNSL_2004_307_a3,
     author = {K. P. Kokhas'},
     title = {Finite factor representations of 2-step nilpotent groups, and orbit theory},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {120--140},
     publisher = {mathdoc},
     volume = {307},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2004_307_a3/}
}