Classification
PKR - Nuclear reactions, nuclear scattering
6
PKAE - Elementary particles, nuclei (reports)
4
PKL - Elementary particles - interactions, reactions, resonances
3
PKH - Neutron physics
2
PKFC - Radiation spectrometers, spectroscopic techniques
1
PKFD - Radiation detectors
1
PKNB - Properties of nuclei, nuclear energy levels
1