@article{articled5e2170f,
title   = {A new analysis of the GJ581 extrasolar planetary system},
author = {Santos, M. Tadeu and Silva, G. G and Ferraz-Mello, Sylvio and Michtchenko, Tatiana Alexandrovna},
year = {2012},
doi = {10.1007/s10569-012-9407-1},
journal   = {Celestial Mechanics & Dynamical Astronomy}
}