SUBJECT
Congresses
Energy development
12
Electronic books
5
Power resources
3
Energy industries
2
Renewable energy sources
2
Agriculture and state
1
Climatic changes
1
Continental margins
1
Disaster relief
1
Economic conditions
1
Economic development
1
Economic policy
1
Energy conservation
1
Energy consumption
1
Energy policy
1
Environmental protection
1
Finance
1
Government policy
1
Industries
1
Infrastructure (Economics)
1
Medical policy
1
Natural gas in submerged lands
1
Ocean energy resources
1
Petroleum in submerged lands
1
Planning
1
Research
1
Risk management
1
Rural development
1
Shipbuilding
1
Water
1