Subfield
- Strategy and Management51
- Demography49
- Waste Management and Disposal48
- Applied Mathematics46
- General Economics, Econometrics and Finance45
- Sociology and Political Science42
- Pollution40
- Management, Monitoring, Policy and Law39
- Communication38
- Health38
- Finance36
- Plant Science34
- Urban Studies34
- Water Science and Technology34
- Social Psychology33
- Library and Information Sciences32
- Virology32
- Forestry31
- Management of Technology and Innovation31
- Geography, Planning and Development30