Classification
PKAE - Elementary particles, nuclei (reports)
AFG - Large scale research institutions (Helmholtz Centres)
6
AES - Universities, academies - Germany
3
AFC - Research institutions, scientific organizations - Germany ( DFG, MPG, FHG )
3
AFM - Research institutions - Europe
3
AFP - Research institutions - non-Europe
2
AFW - Subject oriented organizations
2
FAQ - Materials research - institutions, research and development
2
PJA - Atomic physics - general
2
AHH - Universities - research
1
PCB - Statistical physics
1
PKGC - Particle accelerators (reports)
1