Dokumenttyp
journal article
792
book part
420
newspaper article
314
Buch
178
lecture
172
book review
142
conference paper
120
working paper
82
conference paper not in proceedings
50
doctoral thesis
50
other
32
cartographic material
28
master thesis
18
conference poster not in proceedings
14
report
10
learning object
8
letter to the editor
4
internal report
2
software
2