@article{MT_2010_13_2_a0,
     author = {D. A. Berdinsky},
     title = {On constant mean curvature surfaces in the {Heisenberg} group},
     journal = {Matemati\v{c}eskie trudy},
     pages = {3--9},
     publisher = {mathdoc},
     volume = {13},
     number = {2},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MT_2010_13_2_a0/}
}