Bibcode
                                    
                            Knapen, Johan H.
    Bibliographical reference
                                    Astronomy & Geophysics, Volume 46, Issue 6, pp. 6.28-6.33.
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                        12
            
                        2005
            
  Citations
                                    2
                            Refereed citations
                                    2
                            Description
                                    Bars are prominent features that occur in most disc galaxies and have
important dynamical effects on their hosts. This paper describes some of
the known properties of bars, illustrating the discussion with images
that show the beauty of the galaxies under consideration. The focus of
this article is on the evolution of bars and on their influence on the
redistribution of matter within galaxies. In this way, bars drive the
internal, or secular, evolution of galaxies.