Columbia subject headings:
Astronautics and state--Europe.
Astronautics--Europe--Forecasting.
Astronautics--International cooperation--Europe.
European Space Agency.
Outer space--Exploration--Government policy--Europe.
Harvard subject headings:
Astronautics and state--Europe.
Astronautics--Europe--Forecasting.
Astronautics--International cooperation--Europe.
European Space Agency
Outer space--Exploration--Government policy--Europe.
Princeton subject headings: