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 | 1 | 93 | 2 |
| April 2013 | 0 | 85 | 2 |
| March 2013 | 0 | 78 | 3 |
| February 2013 | 0 | 85 | 5 |
| January 2013 | 0 | 55 | 5 |
| December 2012 | 0 | 65 | 4 |
| November 2012 | 1 | 131 | 18 |
| October 2012 | 1 | 106 | 11 |
| September 2012 | 0 | 78 | 13 |
| August 2012 | 9 | 84 | 10 |
| July 2012 | 7 | 147 | 16 |
| June 2012 | 25 | 68 | 14 |
| May 2012 | 32 | 62 | 24 |
| April 2012 | 1 | 81 | 16 |
| March 2012 | 0 | 81 | 8 |
| February 2012 | 0 | 64 | 5 |
| January 2012 | 0 | 78 | 2 |
| December 2011 | 0 | 70 | 5 |
| November 2011 | 27 | 50 | 10 |
| October 2011 | 70 | 46 | 8 |
| September 2011 | 63 | 31 | 7 |
| August 2011 | 42 | 36 | 28 |
| July 2011 | 51 | 33 | 36 |
| June 2011 | 33 | 21 | 16 |
| May 2011 | 35 | 33 | 27 |
| April 2011 | 59 | 35 | 35 |
| March 2011 | 58 | 41 | 45 |
| February 2011 | 63 | 53 | 19 |
| January 2011 | 42 | 44 | 27 |
| December 2010 | 33 | 55 | 36 |
| November 2010 | 72 | 60 | 41 |
| October 2010 | 58 | 47 | 39 |
| September 2010 | 30 | 47 | 15 |
| August 2010 | 29 | 37 | 14 |
| July 2010 | 24 | 33 | 18 |
| June 2010 | 36 | 46 | 16 |
| May 2010 | 28 | 60 | 26 |
| April 2010 | 41 | 52 | 26 |
| March 2010 | 41 | 39 | 29 |
| February 2010 | 35 | 47 | 15 |
| January 2010 | 45 | 38 | 13 |
| December 2009 | 45 | 53 | 13 |
| November 2009 | 52 | 56 | 17 |
| October 2009 | 42 | 62 | 15 |
| September 2009 | 41 | 28 | 16 |
| August 2009 | 28 | 34 | 14 |
| July 2009 | 27 | 23 | 15 |
| June 2009 | 26 | 32 | 16 |
| May 2009 | 35 | 31 | 12 |
| April 2009 | 64 | 28 | 11 |
| March 2009 | 60 | 73 | 20 |
| February 2009 | 40 | 66 | 20 |
| January 2009 | 35 | 33 | 20 |
| December 2008 | 35 | 66 | 26 |
| November 2008 | 51 | 68 | 33 |
| October 2008 | 62 | 110 | 32 |
| September 2008 | 40 | 73 | 21 |
| August 2008 | 29 | 39 | 15 |
| July 2008 | 38 | 71 | 15 |
| June 2008 | 24 | 74 | 16 |
| May 2008 | 15 | 71 | 24 |
| April 2008 | 25 | 57 | 13 |
| March 2008 | 19 | 66 | 31 |
| February 2008 | 13 | 59 | 30 |
| January 2008 | 14 | 40 | 30 |
| December 2007 | 16 | 44 | 23 |
| November 2007 | 28 | 59 | 34 |
| October 2007 | 40 | 72 | 44 |
| September 2007 | 28 | 54 | 32 |
| August 2007 | 14 | 38 | 22 |
| July 2007 | 9 | 31 | 23 |
| June 2007 | 19 | 32 | 24 |
| May 2007 | 33 | 54 | 34 |
| April 2007 | 27 | 42 | 35 |
| March 2007 | 62 | 78 | 37 |
| February 2007 | 30 | 51 | 22 |
| January 2007 | 35 | 51 | 17 |
| December 2006 | 25 | 61 | 30 |
| November 2006 | 47 | 94 | 68 |
| October 2006 | 36 | 118 | 47 |
| September 2006 | 29 | 79 | 43 |
| August 2006 | 13 | 30 | 18 |
| July 2006 | 22 | 60 | 18 |
| June 2006 | 21 | 49 | 13 |
| May 2006 | 37 | 76 | 45 |
| April 2006 | 38 | 87 | 34 |
| March 2006 | 36 | 73 | 39 |
| February 2006 | 25 | 63 | 42 |
| January 2006 | 24 | 30 | 24 |
| December 2005 | 20 | 61 | 27 |
| November 2005 | 28 | 88 | 40 |
| October 2005 | 42 | 95 | 39 |
| September 2005 | 37 | 71 | 26 |
| August 2005 | 26 | 69 | 26 |
| July 2005 | 35 | 84 | 41 |
| June 2005 | 29 | 52 | 39 |
| May 2005 | 27 | 81 | 47 |
| April 2005 | 89 | 105 | 58 |
| March 2005 | 68 | 76 | 71 |
| February 2005 | 67 | 117 | 88 |
| January 2005 | 60 | 123 | 64 |
| December 2004 | 52 | 130 | 52 |
| November 2004 | 58 | 146 | 75 |
| October 2004 | 75 | 107 | 57 |
| September 2004 | 54 | 86 | 53 |
| August 2004 | 96 | 120 | 59 |
| July 2004 | 122 | 178 | 68 |
| June 2004 | 112 | 142 | 84 |
| May 2004 | 99 | 190 | 130 |
| April 2004 | 111 | 329 | 220 |
| March 2004 | 946 | 763 | 624 |








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