Rodríguez M., Villar-Martín M., Emonts B., Humphrey A., Drouart G., García-Burillo S., M. Torres P.  2014.  The molecular gas content of ULIRG type 2 quasars at z ?t 1}. Astronomy and Astrophysics. 565:A19.

Villar-Martín M., Rodríguez M., Drouart G., Emonts B., Colina L., Humphrey A., García-Burillo S., J. Carpio G, Planesas P., M. Torres P et al..  2013.  Molecular gas in type 2 quasars at z \tilde 0.2-0.3}. Monthly Notices of the Royal Astronomical Society. 434:978-991.

Humphrey A., Villar-Martín M., Sánchez S.F, Martínez-Sansigre A., Delgado R.G, Pérez E., Tadhunter C., Pérez-Torres M.A.  2010.  Integral-field spectroscopy of type II QSOs at z = 0.3-0.4. Monthly Notices of the Royal Astronomical Society. 408:L1-L5.

Villar-Martín M., Tadhunter C., Pérez E., Humphrey A., Martínez-Sansigre A., Delgado R.G, Pérez-Torres M.A.  2010.  VLT and GTC observations of SDSS J0123+00: a type 2 quasar triggered in a galaxy encounter. Monthly Notices of the Royal Astronomical Society. 407:L6-L10.