Genre
bachelor's theses
22
master's theses
47
dissertations
5
electronic books
7
encyclopedias
3
habilitation theses
2
collective monographs
21
monographs
172
professional journals
1
popular works
13
lectures
4
surveys
2
case studies
1
handbooks and manuals
590
yearbooks
1
papers
35
proceedings of conferences
28
studies
131
textbooks
271
textbooks (secondary)
1
textbooks (higher)
46
teaching aids
1
educational texts
1
college textbooks
81
selected works
1
explanatory dictionaries
3
research studies
1
reports
1
journals
1