January 1 - February 14
September 28 - November 11
August 14 - September 27
February 15 - March 31
May 16 - June 29
November 12 - December 31
June 30 - August 13, 2013
April 1 - May 15
September 1 - October 31
July 1 - August 31
ISSN en línea 2007-9230
ISSN impreso 2007-2934