Classification
AHA - Research and development, research politics - general
2
AHF - Research and science
1
AMA - Education - general
1
EXA - Energy policy
5
GRBA - Climatology - general
2
TNOB - Nuclear reactor accidents
1
TNW - Nuclear controversy
1
UMV - Climatic change
2
YPB - Economy - general aspects
1
YPD - Business economics
1
YPGL - Public relations
1
YRA - Social studies
2
YRC - Technology and society
2
YRD - Technology assessment
1
YRE - Risk assessment
2
YRG - Technology transfer
1
YZA - Politics, political science
1