Bibcode
                                    
                            Martínez Pillet, V.; Murdin, P.
    Bibliographical reference
                                    "Encyclopedia of Astronomy and Astrophysics, Edited by Paul Murdin, article 2000. Bristol: Institute of Physics Publishing, 2001. http://eaa.iop.org/abstract/0333750888/2000"
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                        11
            
                        2000
            
  Citations
                                    0
                            Refereed citations
                                    0
                            Description
                                    A description of the emergence of large concentrations of magnetic
fields (active regions) at the solar surface is presented. The dark
structures known as SUNSPOTS are a consequence of this process....