@article{10_4153_CMB_2015_061_3,
     author = {Dorfmeister, Josef F. and Inoguchi, Jun-ichi and Kobayashi, Shimpei},
     title = {On the {Bernstein} {Problem} in the {Three-dimensional} {Heisenberg} {Group}},
     journal = {Canadian mathematical bulletin},
     pages = {50--61},
     year = {2016},
     volume = {59},
     number = {1},
     doi = {10.4153/CMB-2015-061-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2015-061-3/}
}