@article{article101155c6,
title   = {A new model for gravitational potential perturbations in disks of spiral galaxies: an application to our Galaxy},
author = {Junqueira, T. C and Lépine, Jacques Raymond Daniel and Braga, C. A. S and Barros, D. A},
year = {2013},
doi = {10.1051/0004-6361/201219769},
journal   = {Astronomy & Astrophysics}
}