@ARTICLE{topputo2014philae,
  author = {Topputo, F. and Caputo, G. and Bernelli-Zazzera, F.},
  title = {{Philae Attitude Determination through Nonlinear Optimal Identification of Solar Arrays Telemetry}},
  journal = {Aerotecnica Missili \& Spazio},
  year = {2014},
  volume = {93},
  pages = {68--74},
}