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 | 32 | 13 | 4 |
| April 2013 | 35 | 19 | 4 |
| March 2013 | 43 | 29 | 9 |
| February 2013 | 36 | 14 | 5 |
| January 2013 | 32 | 16 | 4 |
| December 2012 | 55 | 19 | 3 |
| November 2012 | 135 | 48 | 15 |
| October 2012 | 102 | 24 | 5 |
| September 2012 | 33 | 15 | 4 |
| August 2012 | 29 | 29 | 5 |
| July 2012 | 19 | 52 | 14 |
| June 2012 | 36 | 14 | 8 |
| May 2012 | 93 | 35 | 11 |
| April 2012 | 73 | 37 | 10 |
| March 2012 | 102 | 39 | 13 |
| February 2012 | 109 | 23 | 9 |
| January 2012 | 82 | 47 | 15 |
| December 2011 | 0 | 136 | 36 |
| November 2011 | 21 | 154 | 43 |
| October 2011 | 79 | 124 | 53 |
| September 2011 | 81 | 107 | 46 |
| August 2011 | 55 | 105 | 36 |
| July 2011 | 97 | 29 | 20 |
| June 2011 | 115 | 23 | 10 |
| May 2011 | 146 | 42 | 36 |
| April 2011 | 184 | 32 | 13 |
| March 2011 | 199 | 62 | 18 |
| February 2011 | 204 | 35 | 20 |
| January 2011 | 128 | 42 | 14 |
| December 2010 | 137 | 33 | 15 |
| November 2010 | 199 | 55 | 18 |
| October 2010 | 229 | 71 | 17 |
| September 2010 | 235 | 64 | 20 |
| August 2010 | 138 | 58 | 33 |
| July 2010 | 116 | 66 | 27 |
| June 2010 | 119 | 64 | 17 |
| May 2010 | 163 | 42 | 16 |
| April 2010 | 158 | 64 | 32 |
| March 2010 | 165 | 58 | 26 |
| February 2010 | 118 | 48 | 24 |
| January 2010 | 107 | 68 | 17 |
| December 2009 | 89 | 42 | 8 |
| November 2009 | 120 | 78 | 20 |
| October 2009 | 99 | 118 | 34 |
| September 2009 | 119 | 41 | 19 |
| August 2009 | 84 | 23 | 9 |
| July 2009 | 81 | 33 | 15 |
| June 2009 | 69 | 28 | 11 |
| May 2009 | 94 | 48 | 17 |
| April 2009 | 96 | 48 | 24 |
| March 2009 | 130 | 61 | 20 |
| February 2009 | 135 | 37 | 31 |
| January 2009 | 69 | 59 | 23 |
| December 2008 | 48 | 143 | 38 |
| November 2008 | 46 | 206 | 34 |
| October 2008 | 38 | 238 | 38 |
| September 2008 | 42 | 179 | 21 |
| August 2008 | 17 | 138 | 20 |
| July 2008 | 4 | 132 | 15 |
| June 2008 | 7 | 177 | 25 |
| May 2008 | 3 | 180 | 21 |
| April 2008 | 8 | 198 | 29 |
| March 2008 | 11 | 174 | 31 |
| February 2008 | 11 | 163 | 17 |
| January 2008 | 8 | 145 | 24 |
| December 2007 | 6 | 133 | 25 |
| November 2007 | 17 | 253 | 38 |
| October 2007 | 24 | 263 | 27 |
| September 2007 | 16 | 167 | 20 |
| August 2007 | 9 | 162 | 22 |
| July 2007 | 14 | 122 | 15 |
| June 2007 | 26 | 152 | 24 |
| May 2007 | 21 | 176 | 30 |
| April 2007 | 19 | 146 | 15 |
| March 2007 | 25 | 185 | 35 |
| February 2007 | 13 | 167 | 25 |
| January 2007 | 26 | 154 | 25 |
| December 2006 | 22 | 97 | 17 |
| November 2006 | 35 | 224 | 55 |
| October 2006 | 34 | 189 | 39 |
| September 2006 | 22 | 141 | 24 |
| August 2006 | 17 | 120 | 33 |
| July 2006 | 7 | 130 | 20 |
| June 2006 | 10 | 119 | 36 |
| May 2006 | 3 | 178 | 36 |
| April 2006 | 9 | 168 | 45 |
| March 2006 | 17 | 183 | 57 |
| February 2006 | 10 | 161 | 44 |
| January 2006 | 12 | 145 | 43 |
| December 2005 | 7 | 131 | 26 |
| November 2005 | 6 | 236 | 50 |
| October 2005 | 13 | 165 | 35 |
| September 2005 | 8 | 150 | 47 |
| August 2005 | 7 | 145 | 35 |
| July 2005 | 15 | 165 | 41 |
| June 2005 | 10 | 177 | 41 |
| May 2005 | 13 | 181 | 37 |
| April 2005 | 10 | 140 | 53 |
| March 2005 | 17 | 193 | 62 |
| February 2005 | 19 | 205 | 67 |
| January 2005 | 23 | 274 | 34 |
| December 2004 | 25 | 155 | 55 |
| November 2004 | 13 | 197 | 45 |
| October 2004 | 5 | 173 | 65 |
| September 2004 | 9 | 161 | 38 |
| August 2004 | 4 | 220 | 44 |
| July 2004 | 2 | 145 | 36 |
| June 2004 | 3 | 202 | 47 |
| May 2004 | 0 | 233 | 61 |
| April 2004 | 0 | 216 | 39 |
| March 2004 | 0 | 288 | 58 |
| February 2004 | 0 | 218 | 59 |
| January 2004 | 0 | 197 | 45 |
| December 2003 | 2 | 213 | 60 |
| November 2003 | 0 | 342 | 86 |
| October 2003 | 0 | 302 | 99 |
| September 2003 | 0 | 200 | 57 |
| August 2003 | 0 | 225 | 54 |
| July 2003 | 0 | 186 | 57 |








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