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Introduction

 

Online download statistics by month:

Online download statistics by month: April 2000 to April 2024

AbstractFullPdf
Apr 2000004
Aug 2000002
Sep 2000002
Oct 2000006
Nov 2000011
Dec 2000003
Feb 2001003
Mar 2001001
Apr 2001001
May 2001001
Jul 2001001
Sep 2001001
Jan 2002003
Jun 2002001
Aug 2002003
Sep 2002002
Oct 20020030
Nov 20020040
Dec 20020044
Jan 20030032
Feb 20030042
Mar 20030025
Apr 20030040
May 20030019
Jun 20030031
Jul 20030059
Aug 20030028
Sep 20030037
Oct 20030024
Nov 20030028
Dec 20030038
Jan 20040036
Feb 20040033
Mar 20040032
Apr 20040031
May 20040034
Jun 20040029
Jul 20040044
Aug 20040043
Sep 20040048
Oct 20040034
Nov 20040048
Dec 20040041
Jan 20050040
Feb 20050030
Mar 20050041
Apr 20050044
May 20050039
Jun 20050046
Jul 20050039
Aug 20050084
Sep 20050038
Oct 20050051
Nov 20050033
Dec 20050027
Jan 20060038
Feb 20060041
Mar 20060054
Apr 20060043
May 20060060
Jun 20060046
Jul 20060033
Aug 20060035
Sep 20060030
Oct 20060034
Nov 20060039
Dec 20060034
Jan 20070032
Feb 20070026
Mar 20070052
Apr 20070023
May 20070014
Jun 20070019
Jul 2007006
Aug 20070017
Sep 2007007
Oct 2007007
Nov 2007006
Dec 2007009
Jan 20080012
Feb 20080010
Mar 20080015
Apr 2008005
May 2008003
Jun 2008006
Jul 2008005
Aug 2008007
Sep 2008006
Oct 2008005
Nov 2008007
Dec 2008003
Jan 20090010
Feb 20090011
Mar 2009007
Apr 2009001
May 2009004
Jun 2009003
Jul 2009005
Aug 2009003
Sep 2009003
Oct 2009009
Nov 2009002
Dec 2009003
Jan 2010008
Feb 2010001
Mar 20100011
Apr 2010003
Jul 2010005
Aug 2010005
Sep 20100010
Oct 2010001
Nov 2010002
Dec 2010004
Jan 2011001
Feb 2011001
Mar 2011002
Apr 2011003
May 2011001
Jul 2011003
Aug 2011001
Sep 2011001
Oct 2011003
Nov 2011005
Dec 2011004
Jan 20120011
Feb 2012006
Mar 2012009
Apr 2012006
May 2012004
Jun 2012001
Jul 2012006
Aug 2012002
Sep 2012005
Oct 2012003
Nov 2012004
Dec 2012005
Jan 2013005
Feb 2013004
Mar 20130010
Apr 2013009
May 2013002
Jun 2013002
Jul 2013004
Sep 2013006
Oct 2013002
Nov 2013004
Mar 2014002
Apr 2014007
May 2014001
Jul 2014003
Sep 2014002
Oct 2014001
Nov 2014002
Dec 2014001
Jan 2015002
Feb 2015008
Mar 2015106
Apr 20150021
May 2015003
Jun 2015002
Jul 20150012
Aug 2015007
Sep 2015004
Oct 2015009
Nov 2015006
Dec 2015003
Jan 2016006
Feb 2016003
Mar 2016009
Apr 2016006
May 2016007
Jun 2016003
Jul 2016003
Aug 2016006
Sep 2016004
Dec 2016003
Jan 2017007
Feb 2017003
Mar 2017002
Jun 2017005
Jul 2017001
Aug 2017004
Sep 2017004
Oct 2017002
Nov 2017001
Dec 2017002
Jan 2018001
Feb 2018001
Mar 2018002
Oct 2018001
Dec 2018001
Jan 2019001
Feb 2019001
Mar 2019004
Apr 2019002
May 2019003
Jun 2019001
Jul 2019003
Sep 2019004
Oct 2019004
Nov 2019001
Dec 2019002
Jan 2020004
Feb 2020002
Mar 2020002
Apr 2020001
May 2020002
Jun 2020002
Jul 2020002
Aug 2020001
Sep 2020002
Nov 2020003
Dec 2020002
Jan 2021006
Feb 2021003
Mar 2021003
May 2021001
Jul 2021004
Aug 2021006
Sep 2021006
Oct 20210019
Nov 20210012
Dec 2021002
Jan 2022003
Feb 2022002
Mar 2022003
Apr 2022002
May 20220015
Jun 2022008
Aug 2022003
Sep 20220010
Oct 2022006
Nov 2022001
Dec 2022001
Jan 2023001
Mar 2023001
Apr 2023002
May 2023007
Jul 2023008
Aug 2023006
Sep 2023003
Nov 2023003
Jan 2024001
Feb 2024002
Mar 2024003
Apr 2024003
Total112946