Classification
CLJ - Catalyst materials
3
CLM - Catalytic processes
2
CNE - Electrochemistry
2
CLG - Catalysis - surveys, general aspects
1
CLMD - Catalytic processes of inorganic compounds
1
CLMH - Catalytic processes of organic compounds
1
CUK - X-ray spectroscopy
1
CXL - Coal liquefaction
1
CXX - Hydrogen production - chemistry and technology
1
ESB - Hydrogen energy
1
ETF - Fuel cells - general
1