Classification
CLPS - Organic colloids, membranes
4
CWSW - Membrane separation process
4
CXA - Coal and fossil fuel - chemistry and technology
2
EEA - Coal - general
2
ETFG - Polymer electrolyte membrane fuel cells ( PEMFC )
2
FNP - Ceramics - specific materials
2
TKF - Power plants
2
UKA - Environmental damage and energy production
2
UKE - Environment and energy resources
2
UML - Air pollution by special sources
2