Document Type
Still Image
2,224
Article in Journal/Newspaper
1,687
Report
1,276
Map
352
Master Thesis
142
Text
140
Other/Unknown Material
123
Book
108
Dataset
36
Journal/Newspaper
32
Audio
25
Bachelor Thesis
17
Book Part
16
Doctoral or Postdoctoral Thesis
12
Conference Object
11
Thesis
3
Other Non-Article Part of Journal/Newspaper
2
Review
2
Software
2
Manuscript
1
Moving Image (Video)
1
Musical Notation
1