New views on bar pattern speeds from the NUGA survey
  We present a review on bar pattern speeds from preliminary results in the context of the Nuclei of Galaxies (NUGA) project. The large variety of molecular circumnuclear morphologies found in NUGA is a challenging result that implies the refinement of current dynamical models of galaxies. 
V. Casasola (1), S. Garcia-Burillo (2), F. Combes (3), L. K. Hunt (1),   M. Krips (4), E. Schinnerer (5), A. J. Baker (6), F...