1980-09 | | view file | |
1983-03 | | view file | |
1983-06 | | view file | |
1986-12 | | view file | |
1988-09 | | view file | |
1989-09 | | view file | |
1990-09 | | view file | |
1994-06 | | view file | |
1994-09 | | view file | |
1994-12 | | view file | |
1997 | | link | |
2003 | | link | |
2003 | | link | |
2005-12 | | link | |
2006 | | link | |
2006-02 | | link | |
2007-08 | | view filelink | |
2008-01 | | DOI | |
2008-09 | | DOI | |
2008-09 | | DOI | |
2008-12 | | link | |
2009-04 | | DOI | |
2009-11 | | DOI | |
2010-08 | | DOI | |
2012-05 | | DOI | |
2013-08 | | view file | |