@article{articlecd91f48e,
title   = {Global hypoellipticity of planar complex vector fields},
author = {Bergamasco, Adalberto Panobianco and Laguna, Renato Andrielli and Zani, Sérgio Luís},
year = {2019},
doi = {10.1016/j.jde.2019.05.027},
journal   = {Journal of Differential Equations}
}