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 | 204 | 12 | 3 |
| April 2013 | 165 | 15 | 0 |
| March 2013 | 132 | 19 | 2 |
| February 2013 | 143 | 15 | 1 |
| January 2013 | 124 | 12 | 2 |
| December 2012 | 153 | 12 | 3 |
| November 2012 | 282 | 34 | 4 |
| October 2012 | 216 | 16 | 2 |
| September 2012 | 118 | 17 | 0 |
| August 2012 | 43 | 21 | 4 |
| July 2012 | 34 | 15 | 1 |
| June 2012 | 47 | 28 | 3 |
| May 2012 | 52 | 19 | 5 |
| April 2012 | 320 | 9 | 2 |
| March 2012 | 295 | 22 | 1 |
| February 2012 | 573 | 36 | 5 |
| January 2012 | 683 | 177 | 9 |
| December 2011 | 0 | 541 | 23 |
| November 2011 | 9 | 423 | 17 |
| October 2011 | 38 | 417 | 23 |
| September 2011 | 59 | 415 | 15 |
| August 2011 | 22 | 367 | 23 |
| July 2011 | 182 | 124 | 7 |
| June 2011 | 194 | 42 | 15 |
| May 2011 | 246 | 44 | 7 |
| April 2011 | 229 | 44 | 9 |
| March 2011 | 246 | 44 | 5 |
| February 2011 | 308 | 51 | 8 |
| January 2011 | 400 | 70 | 16 |
| December 2010 | 230 | 68 | 8 |
| November 2010 | 429 | 65 | 8 |
| October 2010 | 670 | 158 | 20 |
| September 2010 | 490 | 79 | 17 |
| August 2010 | 240 | 73 | 11 |
| July 2010 | 172 | 79 | 12 |
| June 2010 | 186 | 85 | 9 |
| May 2010 | 253 | 98 | 9 |
| April 2010 | 261 | 82 | 9 |
| March 2010 | 340 | 105 | 12 |
| February 2010 | 294 | 107 | 13 |
| January 2010 | 324 | 104 | 9 |
| December 2009 | 192 | 49 | 6 |
| November 2009 | 206 | 82 | 10 |
| October 2009 | 217 | 69 | 9 |
| September 2009 | 251 | 64 | 11 |
| August 2009 | 213 | 80 | 7 |
| July 2009 | 222 | 83 | 7 |
| June 2009 | 161 | 92 | 6 |
| May 2009 | 158 | 76 | 13 |
| April 2009 | 225 | 84 | 8 |
| March 2009 | 221 | 74 | 10 |
| February 2009 | 195 | 67 | 15 |
| January 2009 | 178 | 220 | 28 |
| December 2008 | 8 | 567 | 23 |
| November 2008 | 35 | 671 | 37 |
| October 2008 | 19 | 744 | 44 |
| September 2008 | 13 | 701 | 24 |
| August 2008 | 4 | 678 | 21 |
| July 2008 | 3 | 591 | 27 |
| June 2008 | 11 | 716 | 35 |
| May 2008 | 5 | 583 | 25 |
| April 2008 | 14 | 618 | 33 |
| March 2008 | 16 | 591 | 54 |
| February 2008 | 17 | 672 | 35 |
| January 2008 | 18 | 571 | 38 |
| December 2007 | 10 | 366 | 19 |
| November 2007 | 7 | 465 | 16 |
| October 2007 | 2 | 453 | 17 |
| September 2007 | 8 | 427 | 33 |
| August 2007 | 6 | 450 | 17 |
| July 2007 | 2 | 401 | 13 |
| June 2007 | 6 | 482 | 28 |
| May 2007 | 4 | 599 | 23 |
| April 2007 | 7 | 599 | 30 |
| March 2007 | 11 | 640 | 27 |
| February 2007 | 5 | 676 | 42 |
| January 2007 | 8 | 609 | 41 |
| December 2006 | 2 | 419 | 30 |
| November 2006 | 10 | 559 | 50 |
| October 2006 | 11 | 711 | 46 |
| September 2006 | 9 | 671 | 32 |
| August 2006 | 6 | 513 | 19 |
| July 2006 | 6 | 549 | 28 |
| June 2006 | 10 | 447 | 20 |
| May 2006 | 7 | 563 | 28 |
| April 2006 | 10 | 534 | 41 |
| March 2006 | 19 | 618 | 37 |
| February 2006 | 14 | 695 | 37 |
| January 2006 | 7 | 560 | 31 |
| December 2005 | 6 | 539 | 26 |
| November 2005 | 13 | 538 | 63 |
| October 2005 | 6 | 428 | 27 |
| September 2005 | 6 | 368 | 38 |
| August 2005 | 19 | 420 | 34 |
| July 2005 | 5 | 381 | 19 |
| June 2005 | 16 | 382 | 28 |
| May 2005 | 10 | 511 | 33 |
| April 2005 | 9 | 426 | 36 |
| March 2005 | 15 | 483 | 22 |
| February 2005 | 13 | 454 | 29 |
| January 2005 | 10 | 371 | 22 |
| December 2004 | 34 | 291 | 38 |
| November 2004 | 11 | 563 | 47 |
| October 2004 | 7 | 383 | 24 |
| September 2004 | 5 | 348 | 33 |
| August 2004 | 0 | 446 | 60 |
| July 2004 | 0 | 493 | 19 |
| June 2004 | 0 | 528 | 39 |
| May 2004 | 0 | 527 | 50 |
| April 2004 | 0 | 656 | 53 |
| March 2004 | 0 | 692 | 49 |
| February 2004 | 1 | 710 | 61 |
| January 2004 | 0 | 772 | 55 |
| December 2003 | 0 | 462 | 41 |
| November 2003 | 0 | 717 | 43 |
| October 2003 | 0 | 563 | 32 |
| September 2003 | 0 | 549 | 40 |
| August 2003 | 0 | 483 | 38 |
| July 2003 | 0 | 545 | 31 |








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