Article usage
Article metrics provide readers and authors with an indication of how often a specific article has been accessed month by month. It counts three formats - abstract/extract, full text and pdf. The page is updated each day.
HW statistics
Monthly Stats
| Month | Abstract | Full | |
|---|---|---|---|
| May 2013 | 6 | 0 | 0 |
| April 2013 | 1 | 0 | 0 |
| March 2013 | 3 | 1 | 0 |
| February 2013 | 4 | 0 | 0 |
| January 2013 | 15 | 1 | 0 |
| December 2012 | 1 | 0 | 0 |
| November 2012 | 17 | 2 | 0 |
| October 2012 | 5 | 0 | 0 |
| September 2012 | 1 | 1 | 0 |
| August 2012 | 2 | 1 | 0 |
| July 2012 | 3 | 0 | 0 |
| June 2012 | 1 | 1 | 0 |
| May 2012 | 2 | 3 | 0 |
| April 2012 | 4 | 0 | 0 |
| March 2012 | 3 | 0 | 0 |
| February 2012 | 9 | 3 | 0 |
| January 2012 | 6 | 5 | 0 |
| December 2011 | 0 | 5 | 0 |
| November 2011 | 1 | 1 | 0 |
| October 2011 | 2 | 7 | 0 |
| September 2011 | 0 | 9 | 0 |
| August 2011 | 3 | 8 | 0 |
| July 2011 | 2 | 6 | 0 |
| June 2011 | 6 | 5 | 0 |
| May 2011 | 8 | 3 | 0 |
| April 2011 | 5 | 0 | 0 |
| March 2011 | 7 | 2 | 0 |
| February 2011 | 4 | 3 | 0 |
| January 2011 | 1 | 4 | 0 |
| December 2010 | 3 | 3 | 0 |
| November 2010 | 7 | 0 | 0 |
| October 2010 | 16 | 3 | 0 |
| September 2010 | 12 | 4 | 0 |
| August 2010 | 4 | 1 | 0 |
| July 2010 | 2 | 4 | 0 |
| June 2010 | 2 | 4 | 0 |
| May 2010 | 4 | 5 | 0 |
| April 2010 | 1 | 0 | 0 |
| March 2010 | 4 | 3 | 0 |
| February 2010 | 2 | 3 | 0 |
| January 2010 | 0 | 5 | 0 |
| December 2009 | 6 | 0 | 0 |
| November 2009 | 8 | 3 | 0 |
| October 2009 | 9 | 2 | 0 |
| September 2009 | 7 | 1 | 0 |
| August 2009 | 3 | 5 | 0 |
| July 2009 | 1 | 1 | 0 |
| June 2009 | 2 | 0 | 0 |
| May 2009 | 9 | 3 | 0 |
| April 2009 | 6 | 4 | 0 |
| March 2009 | 8 | 6 | 0 |
| February 2009 | 6 | 5 | 0 |
| January 2009 | 3 | 5 | 0 |
| December 2008 | 0 | 6 | 0 |
| November 2008 | 4 | 14 | 0 |
| October 2008 | 1 | 16 | 0 |
| September 2008 | 1 | 11 | 0 |
| August 2008 | 0 | 6 | 0 |
| July 2008 | 1 | 11 | 0 |
| June 2008 | 2 | 10 | 0 |
| May 2008 | 0 | 9 | 0 |
| April 2008 | 0 | 5 | 0 |
| March 2008 | 0 | 6 | 0 |
| February 2008 | 0 | 6 | 0 |
| January 2008 | 0 | 6 | 0 |
| December 2007 | 3 | 5 | 0 |
| November 2007 | 0 | 11 | 0 |
| October 2007 | 0 | 11 | 0 |
| September 2007 | 2 | 6 | 0 |
| August 2007 | 0 | 3 | 0 |
| July 2007 | 0 | 6 | 0 |
| June 2007 | 0 | 6 | 0 |
| May 2007 | 1 | 2 | 0 |
| April 2007 | 0 | 7 | 0 |
| March 2007 | 0 | 6 | 0 |
| February 2007 | 2 | 5 | 0 |
| January 2007 | 0 | 13 | 0 |
| December 2006 | 1 | 10 | 0 |
| November 2006 | 0 | 11 | 2 |
| October 2006 | 2 | 5 | 0 |
| September 2006 | 0 | 6 | 0 |
| August 2006 | 0 | 12 | 0 |
| July 2006 | 0 | 12 | 0 |
| June 2006 | 0 | 17 | 0 |
| May 2006 | 0 | 19 | 2 |
| April 2006 | 0 | 14 | 0 |
| March 2006 | 1 | 15 | 0 |
| February 2006 | 0 | 18 | 0 |
| January 2006 | 0 | 14 | 0 |
| December 2005 | 0 | 14 | 0 |
| November 2005 | 4 | 38 | 1 |
| October 2005 | 3 | 41 | 0 |
| September 2005 | 0 | 25 | 0 |
| August 2005 | 2 | 33 | 3 |
| July 2005 | 0 | 14 | 0 |
| June 2005 | 0 | 10 | 0 |
| May 2005 | 4 | 25 | 0 |
| April 2005 | 0 | 15 | 0 |
| March 2005 | 2 | 34 | 0 |
| February 2005 | 0 | 44 | 0 |
| January 2005 | 5 | 40 | 0 |
| December 2004 | 17 | 40 | 0 |
| November 2004 | 4 | 31 | 0 |
| October 2004 | 1 | 29 | 0 |
| September 2004 | 1 | 37 | 0 |
| August 2004 | 2 | 47 | 0 |
| July 2004 | 0 | 31 | 0 |
| June 2004 | 0 | 46 | 0 |
| May 2004 | 0 | 34 | 0 |
| April 2004 | 0 | 33 | 0 |
| March 2004 | 0 | 45 | 1 |
| February 2004 | 0 | 20 | 0 |
| January 2004 | 0 | 63 | 0 |
| December 2003 | 0 | 58 | 0 |
| November 2003 | 0 | 72 | 0 |
| October 2003 | 0 | 86 | 0 |
| September 2003 | 0 | 109 | 0 |
| August 2003 | 0 | 167 | 0 |
| July 2003 | 0 | 66 | 0 |
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