Subfield
- Education37
- Human Factors and Ergonomics22
- Political Science and International Relations16
- Demography14
- Safety Research11
- Sociology and Political Science11
- Accounting9
- Gender Studies7
- General Agricultural and Biological Sciences7
- Health7
- Infectious Diseases7
- Energy Engineering and Power Technology6
- Social Psychology6
- General Economics, Econometrics and Finance5
- Management of Technology and Innovation5
- Urban Studies5
- Waste Management and Disposal5
- Business and International Management4
- Computer Networks and Communications4
- Development4