Format
Book
4,284
Default
2,552
eBook
2,406
Article
1,367
Thesis
445
Conference proceeding
429
Serial
241
Book chapter
146
Slide
62
Data
61
Report
43
Text
36
Electronic
35
Preprint
26
Image
9
Poster
8
Software
7
OER
5
Audio/Video
3
DVD
3
Event
2
Physical object
2
Presentation
2
Audio
1
Manuscript
1
Standard
1