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 | 15 | 10 | 0 |
| April 2013 | 34 | 7 | 0 |
| March 2013 | 21 | 7 | 0 |
| February 2013 | 24 | 3 | 0 |
| January 2013 | 38 | 9 | 0 |
| December 2012 | 28 | 10 | 0 |
| November 2012 | 52 | 23 | 0 |
| October 2012 | 41 | 10 | 0 |
| September 2012 | 25 | 18 | 0 |
| August 2012 | 20 | 7 | 0 |
| July 2012 | 22 | 21 | 0 |
| June 2012 | 29 | 4 | 0 |
| May 2012 | 35 | 6 | 0 |
| April 2012 | 49 | 14 | 0 |
| March 2012 | 67 | 48 | 0 |
| February 2012 | 109 | 50 | 0 |
| January 2012 | 52 | 41 | 0 |
| December 2011 | 0 | 67 | 0 |
| November 2011 | 16 | 131 | 0 |
| October 2011 | 38 | 163 | 0 |
| September 2011 | 26 | 144 | 0 |
| August 2011 | 28 | 99 | 0 |
| July 2011 | 71 | 62 | 0 |
| June 2011 | 59 | 17 | 0 |
| May 2011 | 76 | 34 | 0 |
| April 2011 | 102 | 28 | 0 |
| March 2011 | 153 | 79 | 0 |
| February 2011 | 122 | 39 | 0 |
| January 2011 | 121 | 44 | 0 |
| December 2010 | 115 | 52 | 0 |
| November 2010 | 149 | 46 | 0 |
| October 2010 | 302 | 97 | 0 |
| September 2010 | 345 | 99 | 0 |
| August 2010 | 209 | 142 | 0 |
| July 2010 | 197 | 112 | 0 |
| June 2010 | 229 | 133 | 0 |
| May 2010 | 299 | 155 | 0 |
| April 2010 | 220 | 146 | 0 |
| March 2010 | 241 | 123 | 0 |
| February 2010 | 156 | 81 | 0 |
| January 2010 | 192 | 103 | 0 |
| December 2009 | 131 | 92 | 1 |
| November 2009 | 185 | 127 | 0 |
| October 2009 | 163 | 96 | 0 |
| September 2009 | 126 | 62 | 0 |
| August 2009 | 168 | 101 | 0 |
| July 2009 | 132 | 42 | 0 |
| June 2009 | 137 | 57 | 0 |
| May 2009 | 154 | 79 | 1 |
| April 2009 | 174 | 101 | 0 |
| March 2009 | 172 | 83 | 0 |
| February 2009 | 114 | 77 | 0 |
| January 2009 | 76 | 83 | 0 |
| December 2008 | 1 | 175 | 0 |
| November 2008 | 3 | 344 | 0 |
| October 2008 | 2 | 348 | 0 |
| September 2008 | 1 | 257 | 0 |
| August 2008 | 0 | 188 | 0 |
| July 2008 | 0 | 198 | 0 |
| June 2008 | 1 | 297 | 0 |
| May 2008 | 6 | 288 | 0 |
| April 2008 | 4 | 313 | 1 |
| March 2008 | 2 | 325 | 0 |
| February 2008 | 1 | 239 | 0 |
| January 2008 | 6 | 227 | 0 |
| December 2007 | 3 | 201 | 0 |
| November 2007 | 2 | 267 | 0 |
| October 2007 | 8 | 261 | 0 |
| September 2007 | 7 | 199 | 0 |
| August 2007 | 1 | 164 | 0 |
| July 2007 | 5 | 153 | 0 |
| June 2007 | 2 | 167 | 0 |
| May 2007 | 4 | 198 | 0 |
| April 2007 | 5 | 238 | 0 |
| March 2007 | 3 | 213 | 0 |
| February 2007 | 6 | 166 | 0 |
| January 2007 | 5 | 210 | 0 |
| December 2006 | 4 | 137 | 0 |
| November 2006 | 9 | 198 | 3 |
| October 2006 | 11 | 240 | 0 |
| September 2006 | 18 | 209 | 0 |
| August 2006 | 8 | 210 | 0 |
| July 2006 | 7 | 146 | 0 |
| June 2006 | 16 | 189 | 0 |
| May 2006 | 15 | 236 | 3 |
| April 2006 | 9 | 207 | 0 |
| March 2006 | 4 | 185 | 0 |
| February 2006 | 13 | 189 | 0 |
| January 2006 | 9 | 203 | 0 |
| December 2005 | 6 | 122 | 0 |
| November 2005 | 9 | 149 | 1 |
| October 2005 | 14 | 229 | 0 |
| September 2005 | 5 | 193 | 0 |
| August 2005 | 20 | 123 | 2 |
| July 2005 | 8 | 201 | 0 |
| June 2005 | 8 | 173 | 0 |
| May 2005 | 10 | 152 | 0 |
| April 2005 | 6 | 188 | 0 |
| March 2005 | 23 | 252 | 0 |
| February 2005 | 15 | 194 | 0 |
| January 2005 | 17 | 227 | 0 |
| December 2004 | 26 | 231 | 0 |
| November 2004 | 14 | 175 | 0 |
| October 2004 | 9 | 150 | 0 |
| September 2004 | 3 | 132 | 0 |
| August 2004 | 0 | 240 | 0 |
| July 2004 | 0 | 219 | 0 |
| June 2004 | 0 | 300 | 0 |
| May 2004 | 0 | 249 | 0 |
| April 2004 | 0 | 261 | 0 |
| March 2004 | 0 | 241 | 1 |
| February 2004 | 1 | 236 | 0 |
| January 2004 | 0 | 208 | 0 |
| December 2003 | 0 | 185 | 0 |
| November 2003 | 1 | 233 | 0 |
| October 2003 | 0 | 206 | 0 |
| September 2003 | 0 | 177 | 0 |
| August 2003 | 0 | 155 | 0 |
| July 2003 | 0 | 148 | 0 |
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