Dokumenttyp
journal article
2.248
conference paper
578
conference paper not in proceedings
458
Buch
400
conference poster not in proceedings
281
cartographic material
267
book part
160
lecture
145
report
138
newspaper article
93
doctoral thesis
64
other
64
internal report
45
learning object
26
working paper
23
master thesis
15
book review
9
software
3