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 | 16 | 20 | 7 |
| April 2013 | 26 | 22 | 4 |
| March 2013 | 34 | 6 | 3 |
| February 2013 | 35 | 12 | 3 |
| January 2013 | 57 | 11 | 3 |
| December 2012 | 49 | 24 | 6 |
| November 2012 | 96 | 35 | 5 |
| October 2012 | 73 | 37 | 10 |
| September 2012 | 53 | 62 | 21 |
| August 2012 | 25 | 22 | 5 |
| July 2012 | 66 | 24 | 10 |
| June 2012 | 52 | 8 | 3 |
| May 2012 | 68 | 15 | 4 |
| April 2012 | 110 | 16 | 7 |
| March 2012 | 92 | 40 | 13 |
| February 2012 | 129 | 46 | 21 |
| January 2012 | 119 | 41 | 13 |
| December 2011 | 0 | 128 | 7 |
| November 2011 | 9 | 111 | 19 |
| October 2011 | 46 | 99 | 38 |
| September 2011 | 39 | 59 | 22 |
| August 2011 | 45 | 58 | 22 |
| July 2011 | 55 | 27 | 18 |
| June 2011 | 56 | 11 | 15 |
| May 2011 | 81 | 32 | 16 |
| April 2011 | 87 | 29 | 22 |
| March 2011 | 98 | 72 | 23 |
| February 2011 | 85 | 27 | 24 |
| January 2011 | 106 | 67 | 27 |
| December 2010 | 57 | 23 | 17 |
| November 2010 | 107 | 92 | 39 |
| October 2010 | 109 | 58 | 26 |
| September 2010 | 106 | 62 | 41 |
| August 2010 | 109 | 72 | 34 |
| July 2010 | 62 | 43 | 27 |
| June 2010 | 68 | 33 | 20 |
| May 2010 | 96 | 47 | 27 |
| April 2010 | 83 | 53 | 31 |
| March 2010 | 94 | 37 | 36 |
| February 2010 | 73 | 51 | 38 |
| January 2010 | 94 | 57 | 41 |
| December 2009 | 67 | 41 | 24 |
| November 2009 | 92 | 55 | 30 |
| October 2009 | 61 | 59 | 32 |
| September 2009 | 57 | 47 | 16 |
| August 2009 | 36 | 44 | 27 |
| July 2009 | 33 | 44 | 22 |
| June 2009 | 38 | 33 | 15 |
| May 2009 | 41 | 51 | 32 |
| April 2009 | 58 | 56 | 38 |
| March 2009 | 72 | 68 | 35 |
| February 2009 | 46 | 31 | 19 |
| January 2009 | 56 | 49 | 31 |
| December 2008 | 37 | 74 | 52 |
| November 2008 | 46 | 122 | 84 |
| October 2008 | 54 | 98 | 53 |
| September 2008 | 30 | 83 | 24 |
| August 2008 | 24 | 70 | 26 |
| July 2008 | 12 | 74 | 35 |
| June 2008 | 27 | 91 | 42 |
| May 2008 | 4 | 99 | 38 |
| April 2008 | 7 | 139 | 54 |
| March 2008 | 5 | 136 | 47 |
| February 2008 | 7 | 126 | 59 |
| January 2008 | 37 | 162 | 38 |
| December 2007 | 121 | 201 | 42 |
| November 2007 | 41 | 147 | 51 |
| October 2007 | 27 | 138 | 43 |
| September 2007 | 23 | 125 | 49 |
| August 2007 | 15 | 110 | 36 |
| July 2007 | 17 | 85 | 45 |
| June 2007 | 37 | 123 | 50 |
| May 2007 | 20 | 107 | 65 |
| April 2007 | 33 | 143 | 50 |
| March 2007 | 52 | 150 | 67 |
| February 2007 | 35 | 149 | 42 |
| January 2007 | 23 | 116 | 61 |
| December 2006 | 32 | 79 | 46 |
| November 2006 | 31 | 105 | 67 |
| October 2006 | 26 | 148 | 53 |
| September 2006 | 29 | 123 | 66 |
| August 2006 | 21 | 98 | 49 |
| July 2006 | 24 | 72 | 43 |
| June 2006 | 12 | 102 | 57 |
| May 2006 | 41 | 114 | 51 |
| April 2006 | 24 | 145 | 56 |
| March 2006 | 33 | 139 | 96 |
| February 2006 | 26 | 134 | 83 |
| January 2006 | 50 | 118 | 61 |
| December 2005 | 64 | 110 | 57 |
| November 2005 | 27 | 126 | 82 |
| October 2005 | 44 | 143 | 59 |
| September 2005 | 37 | 142 | 47 |
| August 2005 | 54 | 145 | 35 |
| July 2005 | 38 | 152 | 47 |
| June 2005 | 61 | 169 | 33 |
| May 2005 | 60 | 246 | 97 |
| April 2005 | 55 | 185 | 54 |
| March 2005 | 91 | 277 | 64 |
| February 2005 | 103 | 328 | 86 |
| January 2005 | 95 | 406 | 191 |
| December 2004 | 89 | 366 | 317 |
| November 2004 | 162 | 1447 | 1245 |
| October 2004 | 85 | 1195 | 816 |








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