@article{article7f89c7b2,
title   = {Constant angle surfaces in the Lorentzian Heisenberg group},
author = {Onnis, Irene Ignazia and Piu, Paola},
year = {2017},
doi = {10.1007/s00013-017-1104-6},
journal   = {Archiv der Mathematik}
}