Classification
EXA - Energy policy
28
EVA - Energy demand, energy supply - comprehensive works
23
EVH - Energy supply - economic growth
17
EVN - Energy supply - future aspects
6
EWA - Energy economy
2
CXRS - Petroleum
1
EAA - Energy - reference books
1
EFP - Petroleum production, natural gas production
1
EVN - EnEVH - Energy supply - economic growth
1