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1990 Article ​

1997 Article ​

2000 Article ​

2000 Article ​

2002 Article ​

2003 Article ​

2005-02-15 Thesis ​

2007 Article ​

2009 Article ​

2011 Article ​

2013-06 DFP ​

2014-09 MFP ​

2014-09 DFP ​

2015-09 DFP ​

2015-09 DFP ​

2015-09 MFP ​

2016 Article ​

2016-09 MFP ​

2017 Article ​

2017 Chapter ​

2017-09 MFP ​

2020-02-04 Thesis ​

2021-06 DFP ​