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1986 Article ​

1987 Article ​

1990 Article ​

1991 Article ​

2001-11-15 Thesis ​

2002-03-08 Thesis ​

2005-11-24 Thesis ​

2006 Article ​

2008-05-26 Thesis ​

2008-06 DFP ​

2009 Article ​

2009-07-28 Thesis ​

2010-05 Article ​

2011 Article ​

2011 Article ​

2011-07 Conf. Object ​

2011-10 Article ​

2012 Article ​

2013 Article ​

2014 Article ​

2014 Article ​

2014-12-10 Class ​

2015 Book ​

2015-07-15 Thesis ​