Classification
EPK - Nuclear energy
UKL - Environment and nuclear power
5
TNA - Nuclear engineering - general
4
TNU - Nuclear process heat
4
TND - Gas cooled reactor types
3
CWE - Chemical engineering, chemical industry - general
2
TNB - Nuclear power plants
2
CRH - Radiochemistry
1
EWA - Energy economy
1
TKF - Power plants
1
TNJ - Nuclear reactor technology
1
UA - Environment - general
1
UEGK - Programs of radioactive waste treatment
1
UXPN - Nonproliferation, nuclear weapons
1