Document Type
Still Image
4,771
Article in Journal/Newspaper
4,215
Text
3,173
Book
1,171
Report
991
Doctoral or Postdoctoral Thesis
617
Thesis
432
Journal/Newspaper
354
Book Part
343
Other/Unknown Material
325
Conference Object
216
Dataset
189
Map
159
Master Thesis
112
Audio
69
Other Non-Article Part of Journal/Newspaper
63
Bachelor Thesis
52
Moving Image (Video)
22
Review
20
Manuscript
16
Lecture
6
Musical Notation
1
Software
1