1997 | | link | |
2002 | | link | |
2004 | | link | |
2006 | | link | |
2007 | | link | |
2009-02 | | DOI | |
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2010 | | link | |
2011-08 | | DOI | |
2012 | | view file | |
2012 | | view file | |
2012-02 | | link | |
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2016-08 | | view filelink | |
2017-02 | | view file | |
2018-02 | | view file | |
2018-03 | | view fileDOI | |
2018-05 | | view fileDOI | |
2018-05 | | view fileDOI | |
2018-08 | | view file | |
2019-07 | | view fileDOI | |
2020 | | view filelink | |
2021-07 | | view fileDOI | |