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 | 10 | 241 | 0 |
| April 2013 | 5 | 225 | 0 |
| March 2013 | 0 | 147 | 0 |
| February 2013 | 0 | 105 | 0 |
| January 2013 | 1 | 151 | 0 |
| December 2012 | 0 | 119 | 0 |
| November 2012 | 1 | 271 | 0 |
| October 2012 | 0 | 216 | 0 |
| September 2012 | 78 | 74 | 0 |
| August 2012 | 80 | 45 | 0 |
| July 2012 | 107 | 101 | 0 |
| June 2012 | 102 | 34 | 0 |
| May 2012 | 110 | 53 | 0 |
| April 2012 | 4 | 184 | 0 |
| March 2012 | 0 | 215 | 0 |
| February 2012 | 0 | 152 | 0 |
| January 2012 | 0 | 166 | 0 |
| December 2011 | 0 | 137 | 0 |
| November 2011 | 22 | 130 | 0 |
| October 2011 | 71 | 66 | 0 |
| September 2011 | 58 | 38 | 0 |
| August 2011 | 42 | 45 | 0 |
| July 2011 | 80 | 31 | 0 |
| June 2011 | 88 | 46 | 0 |
| May 2011 | 51 | 63 | 0 |
| April 2011 | 46 | 52 | 0 |
| March 2011 | 66 | 52 | 0 |
| February 2011 | 84 | 83 | 0 |
| January 2011 | 63 | 60 | 0 |
| December 2010 | 50 | 53 | 0 |
| November 2010 | 66 | 107 | 0 |
| October 2010 | 69 | 73 | 0 |
| September 2010 | 59 | 72 | 0 |
| August 2010 | 43 | 65 | 0 |
| July 2010 | 38 | 50 | 0 |
| June 2010 | 73 | 71 | 0 |
| May 2010 | 111 | 77 | 0 |
| April 2010 | 76 | 80 | 0 |
| March 2010 | 92 | 74 | 0 |
| February 2010 | 65 | 51 | 0 |
| January 2010 | 58 | 66 | 0 |
| December 2009 | 69 | 64 | 0 |
| November 2009 | 152 | 107 | 0 |
| October 2009 | 116 | 125 | 0 |
| September 2009 | 82 | 85 | 0 |
| August 2009 | 63 | 72 | 0 |
| July 2009 | 57 | 73 | 0 |
| June 2009 | 57 | 76 | 0 |
| May 2009 | 84 | 97 | 0 |
| April 2009 | 103 | 87 | 0 |
| March 2009 | 646 | 175 | 0 |
| February 2009 | 541 | 124 | 0 |
| January 2009 | 305 | 105 | 0 |
| December 2008 | 204 | 76 | 0 |
| November 2008 | 149 | 143 | 0 |
| October 2008 | 166 | 152 | 0 |
| September 2008 | 121 | 79 | 0 |
| August 2008 | 88 | 56 | 0 |
| July 2008 | 62 | 47 | 0 |
| June 2008 | 162 | 101 | 0 |
| May 2008 | 117 | 121 | 0 |
| April 2008 | 140 | 145 | 0 |
| March 2008 | 144 | 142 | 0 |
| February 2008 | 110 | 129 | 0 |
| January 2008 | 83 | 91 | 0 |
| December 2007 | 76 | 85 | 0 |
| November 2007 | 130 | 133 | 0 |
| October 2007 | 92 | 129 | 0 |
| September 2007 | 72 | 80 | 0 |
| August 2007 | 55 | 95 | 0 |
| July 2007 | 44 | 59 | 0 |
| June 2007 | 51 | 63 | 0 |
| May 2007 | 95 | 123 | 0 |
| April 2007 | 86 | 163 | 0 |
| March 2007 | 115 | 173 | 0 |
| February 2007 | 106 | 157 | 0 |
| January 2007 | 97 | 126 | 0 |
| December 2006 | 95 | 175 | 0 |
| November 2006 | 109 | 174 | 0 |
| October 2006 | 116 | 159 | 0 |
| September 2006 | 63 | 97 | 0 |
| August 2006 | 45 | 134 | 0 |
| July 2006 | 51 | 82 | 0 |
| June 2006 | 51 | 120 | 0 |
| May 2006 | 67 | 124 | 0 |
| April 2006 | 51 | 153 | 0 |
| March 2006 | 150 | 313 | 0 |
| February 2006 | 75 | 184 | 0 |
| January 2006 | 62 | 153 | 0 |
| December 2005 | 74 | 318 | 0 |
| November 2005 | 100 | 580 | 0 |
| October 2005 | 65 | 230 | 0 |
| September 2005 | 41 | 181 | 0 |
| August 2005 | 43 | 193 | 0 |
| July 2005 | 36 | 146 | 0 |
| June 2005 | 34 | 151 | 0 |
| May 2005 | 48 | 162 | 0 |
| April 2005 | 73 | 233 | 0 |
| March 2005 | 112 | 234 | 0 |
| February 2005 | 141 | 250 | 0 |
| January 2005 | 109 | 305 | 0 |
| December 2004 | 94 | 405 | 1 |
| November 2004 | 136 | 467 | 0 |
| October 2004 | 75 | 433 | 0 |
| September 2004 | 86 | 334 | 0 |
| August 2004 | 79 | 194 | 0 |
| July 2004 | 71 | 170 | 0 |
| June 2004 | 76 | 191 | 0 |
| May 2004 | 74 | 169 | 0 |
| April 2004 | 67 | 158 | 0 |
| March 2004 | 75 | 195 | 2 |
| February 2004 | 43 | 162 | 0 |
| January 2004 | 67 | 165 | 1 |
| December 2003 | 71 | 340 | 0 |
| November 2003 | 67 | 242 | 0 |
| October 2003 | 63 | 138 | 0 |
| September 2003 | 61 | 120 | 0 |
| August 2003 | 82 | 129 | 0 |
| July 2003 | 52 | 216 | 0 |








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