Classification
TNA - Nuclear engineering - general
EPK - Nuclear energy
6
TNO - Nuclear reactor safety
6
TNJ - Nuclear reactor technology
4
TNB - Nuclear power plants
3
TNI - Reactor physics
3
TNL - Nuclear fuel, nuclear fuel elements - general
3
UA - Environment - general
3
TND - Gas cooled reactor types
2
PGK - Fusion plasmas, fusion research
1
PGN - Fusion technology, plasma devices
1
PKC - Elementary particles, nuclei - general theory
1
TNH - Research reactors
1
TNQ - Nuclear reactor operation, control, measurement
1