@article{article7aca76f5,
title   = {Constant angle surfaces in Lorentzian Berger spheres},
author = {Onnis, Irene Ignazia and Passamani, Apoenã Passos and Piu, Paola},
year = {2019},
doi = {10.1007/s12220-018-0044-0},
journal   = {Journal of Geometric Analysis}
}